service indicator NISSAN 350Z 2007 Z33 Engine Control Workshop Manual

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ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
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EC
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ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical Index .................................................. 13
PRECAUTIONS ........................................................ 18
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 18
Precautions for Battery Service .............................. 18
Precautions for Procedures without Cowl Top Cover ... 18
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 18
Precaution .............................................................. 19
PREPARATION ......................................................... 22
Special Service Tools ............................................. 22
Commercial Service Tools ...................................... 23
ENGINE CONTROL SYSTEM .................................. 24
System Diagram ..................................................... 24
Multiport Fuel Injection (MFI) System .................... 25
Electronic Ignition (EI) System ............................... 27
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 28
AIR CONDITIONING CUT CONTROL ..................... 29
Input/Output Signal Chart ....................................... 29
System Description ................................................ 29
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 30
System Description ................................................ 30
Component Description .......................................... 31
CAN COMMUNICATION .......................................... 32
System Description ................................................ 32
EVAPORATIVE EMISSION SYSTEM ....................... 33
Description ............................................................. 33
Component Inspection ........................................... 36
Removal and Installation ........................................ 37
How to Detect Fuel Vapor Leakage ....................... 37
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 39
System Description ................................................ 39
Diagnostic Procedure ............................................. 40
Component Inspection ........................................... 42
POSITIVE CRANKCASE VENTILATION ................. 44Description .............................................................. 44
Component Inspection ............................................ 45
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................ 46
Description .............................................................. 46
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 47
Introduction ............................................................. 47
Two Trip Detection Logic ........................................ 47
Emission-related Diagnostic Information ................ 48
Malfunction Indicator Lamp (MIL) ........................... 62
OBD System Operation Chart ................................ 65
BASIC SERVICE PROCEDURE ............................... 71
Basic Inspection ..................................................... 71
Idle Speed and Ignition Timing Check .................... 76
Procedure After Replacing ECM ............................ 76
VIN Registration ..................................................... 76
Exhaust Valve Timing Control Learning .................. 76
Accelerator Pedal Released Position Learning ...... 77
Throttle Valve Closed Position Learning ................. 77
Idle Air Volume Learning ........................................ 77
Fuel Pressure Check .............................................. 79
TROUBLE DIAGNOSIS ............................................ 81
Trouble Diagnosis Introduction ............................... 81
DTC Inspection Priority Chart ................................. 87
Fail-safe Chart ........................................................ 89
Symptom Matrix Chart ............................................ 90
Engine Control Component Parts Location ............ 94
Vacuum Hose Drawing .........................................100
Circuit Diagram .....................................................101
ECM Harness Connector Terminal Layout ...........103
ECM Terminals and Reference Value ...................103
CONSULT-III Function (ENGINE) .........................116
Generic Scan Tool (GST) Function .......................125
CONSULT-III Reference Value in Data Monitor ....127
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .132
Description ............................................................132
Testing Condition ..................................................132
Inspection Procedure ............................................132
Diagnostic Procedure ...........................................133
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-

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ECA
Revision: 2006 November2007 350Z Description ........................................................... 628
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 628
On Board Diagnosis Logic ................................... 628
DTC Confirmation Procedure ............................... 628
Wiring Diagram .................................................... 629
Diagnostic Procedure ........................................... 630
Component Inspection ......................................... 632
DTC P2122, P2123 APP SENSOR ........................ 633
Component Description ........................................ 633
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 633
On Board Diagnosis Logic ................................... 633
DTC Confirmation Procedure ............................... 634
Wiring Diagram .................................................... 635
Diagnostic Procedure ........................................... 637
Component Inspection ......................................... 640
Removal and Installation ...................................... 640
DTC P2127, P2128 APP SENSOR ........................ 641
Component Description ........................................ 641
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 641
On Board Diagnosis Logic ................................... 641
DTC Confirmation Procedure ............................... 642
Wiring Diagram .................................................... 643
Diagnostic Procedure ........................................... 645
Component Inspection ......................................... 648
Removal and Installation ...................................... 649
DTC P2138 APP SENSOR ..................................... 650
Component Description ........................................ 650
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 650
On Board Diagnosis Logic ................................... 650
DTC Confirmation Procedure ............................... 651
Wiring Diagram .................................................... 652
Diagnostic Procedure ........................................... 654
Component Inspection ......................................... 658
Removal and Installation ...................................... 658
DTC P2A00, P2A03 A/F SENSOR 1 ...................... 659
Component Description ........................................ 659
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 659
On Board Diagnosis Logic ................................... 659
DTC Confirmation Procedure ............................... 660
Wiring Diagram .................................................... 661
Diagnostic Procedure ........................................... 665
Removal and Installation ...................................... 670
ASCD BRAKE SWITCH ......................................... 671
Component Description ........................................ 671
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 671
Wiring Diagram .................................................... 672
Diagnostic Procedure ........................................... 675
Component Inspection ......................................... 680ASCD INDICATOR ..................................................681
Component Description ........................................681
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................681
Wiring Diagram .....................................................682
Diagnostic Procedure ...........................................683
ELECTRICAL LOAD SIGNAL ................................684
Description ............................................................684
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................684
Diagnostic Procedure ...........................................684
FUEL INJECTOR ....................................................686
Component Description ........................................686
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................686
Wiring Diagram .....................................................687
Diagnostic Procedure ...........................................688
Component Inspection ..........................................690
Removal and Installation ......................................690
FUEL PUMP ............................................................691
Description ............................................................691
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................691
Wiring Diagram .....................................................692
Diagnostic Procedure ...........................................693
Component Inspection ..........................................697
Removal and Installation ......................................697
IGNITION SIGNAL ..................................................698
Component Description ........................................698
Wiring Diagram .....................................................699
Diagnostic Procedure ...........................................704
Component Inspection ..........................................708
Removal and Installation ......................................709
REFRIGERANT PRESSURE SENSOR ..................710
Component Description ........................................710
Wiring Diagram .....................................................711
Diagnostic Procedure ...........................................712
Removal and Installation ......................................715
MIL AND DATA LINK CONNECTOR ......................716
Wiring Diagram .....................................................716
SERVICE DATA AND SPECIFICATIONS (SDS) ....718
Fuel Pressure .......................................................718
Idle Speed and Ignition Timing .............................718
Calculated Load Value ..........................................718
Mass Air Flow Sensor ...........................................718
Intake Air Temperature Sensor .............................718
Engine Coolant Temperature Sensor ...................718
Air Fuel Ratio (A/F) Sensor 1 Heater ....................718
Heated Oxygen sensor 2 Heater ..........................718
Crankshaft Position Sensor (POS) .......................718
Camshaft Position Sensor (PHASE) ....................718
Throttle Control Motor ...........................................719
Fuel Injector ..........................................................719
Fuel Pump ............................................................719

EC-18
PRECAUTIONS
Revision: 2006 November2007 350Z
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS00029
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNBS0002A
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Procedures without Cowl Top CoverNBS006TI
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and A/TNBS0002B
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-76, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the short circuit.
PIIB3706J

EC-38
EVAPORATIVE EMISSION SYSTEM
Revision: 2006 November2007 350Z
WITH CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Also attach the pressure pump and hose to the EVAP service port adapter.
3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT MODE” with CONSULT-III.
5. Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
6. Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar
graph.
7. Remove EVAP service port adapter and hose with pressure pump.
8. Locate the leak using a leak detector. Refer to EC-34, "
EVAPO-
RATIVE EMISSION LINE DRAWING" .
WITHOUT CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP ser-
vice port.
2. Also attach the pressure pump with pressure gauge to the EVAP
service port adapter.
3. Apply battery voltage between the terminals of EVAP canister vent control valve to make a closed EVAP
system.
4. To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38 to
2.76 kPa (0.014 to 0.028 kg/cm
2 , 0.2 to 0.4 psi).
5. Remove EVAP service port adapter and hose with pressure pump.
6. Locate the leak using a leak detector. Refer to EC-34, "
EVAPORATIVE EMISSION LINE DRAWING" .
SEF200U
SEF462UA
PBIB1086E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
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ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionNBS0002Z
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
×: Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode.
(Refer to EC-89, "
Fail-safe Chart" .)
Two Trip Detection LogicNBS00030
When a malfunction is detected for the 1st time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
×: Applicable —: Not applicable
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.
Emission-related diagnostic information Diagnostic service
Diagnostic Trouble Code (DTC) Service $03 of SAE J1979
Freeze Frame data Service $02 of SAE J1979
System Readiness Test (SRT) code Service $01 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Service $07 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Service $06 of SAE J1979
Calibration ID Service $09 of SAE J1979
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT status SRT code Test value
CONSULT-III××××××—
GST×××—×××
ECM×× *— —×——
ItemsMIL DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
display-
ing BlinkingLighting
upBlinkingLighting
up
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0306 is being detected×———— —×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0306 is being detected——×——×——
One trip detection diagnoses
(Refer to EC-48, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .)—×——×———
Except above — — —×—××—

EC-62
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 November2007 350Z
4. Touch “ERASE”. [The DTC in the TCM (Transmission control module) will be erased.] Then touch “BACK”
twice.
5. Touch “ENGINE”.
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
WITH GST
The emission related diagnostic information in the ECM can be erased by selecting Service $04 with GST.
NOTE:
If the DTC is not for A/T related items (see EC-8, "
INDEX FOR DTC" ), skip step 2.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once.
Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform AT- 3 8 , "
HOW TO ERASE DTC (WITH GST)" . (The DTC in the TCM will be erased.)
3. Select Service $04 with GST (Generic Scan Tool).
NO TOOLS
NOTE:
If the DTC is not for A/T related items (see EC-8, "
INDEX FOR DTC" ), skip step 2.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once.
Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform AT- 3 8 , "
HOW TO ERASE DTC (NO TOOLS)" . (The DTC in the TCM will be erased.)
3. Change the diagnostic test mode from Mode II to Mode I by depressing the accelerator pedal.
Refer to EC-63, "
HOW TO SWITCH DIAGNOSTIC TEST MODE" .

If the battery is disconnected, the emission-related diagnostic information will be lost within 24
hours.

The following data are cleared when the ECM memory is erased.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–Freeze frame data
–1st trip freeze frame data
–System readiness test (SRT) codes
–Test values
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
Malfunction Indicator Lamp (MIL)NBS00032
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-56, "
WARNING LAMPS" ,
or see EC-716, "
MIL AND DATA LINK CONNECTOR" .
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
SEF217U

BASIC SERVICE PROCEDURE
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BASIC SERVICE PROCEDUREPFP:00018
Basic InspectionNBS00034
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Headlamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no-
load.
6. Make sure that no DTC is displayed with CONSULT-III or GST.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U

BASIC SERVICE PROCEDURE
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7. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-III.
Refer to EC-76, "
IDLE SPEED" .
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to EC-76, "
IDLE SPEED" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.

Check camshaft position sensor (PHASE) and circuit.
Refer to EC-394, "
DTC P0340, P0345 CMP SENSOR (PHASE)" .

Check crankshaft position sensor (POS) and circuit.
Refer to EC-386, "
DTC P0335 CKP SENSOR (POS)" .
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace.
2. GO TO 4.
9. CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs.
Refer to BL-150, "
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)" .
>> GO TO 4.
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
Refer to EC-76, "
IGNITION TIMING" .
OK or NG
OK >> GO TO 19.
NG >> GO TO 11.A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A : Timing indicator
A/T: 15 ± 5° BTDC (in P or N position)
M/T: 15 ± 5° BTDC (in Neutral position)
PBIB3530E

EC-74
BASIC SERVICE PROCEDURE
Revision: 2006 November2007 350Z
11 . PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
>> GO TO 12.
12. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-77, "
Throttle Valve Closed Position Learning" .
>> GO TO 13.
13. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-77, "
Idle Air Volume Learning" .
Is Idle Air Volume Learning carried out successfully?
Ye s o r N o
Yes >> GO TO 14.
No >> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
14. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-III.
Refer to EC-76, "
IDLE SPEED" .
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to EC-76, "
IDLE SPEED" .
OK or NG
OK >> GO TO 15.
NG >> GO TO 17.
15. CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light.
Refer to EC-76, "
IGNITION TIMING" .
OK or NG
OK >> GO TO 19.
NG >> GO TO 16.A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A : Timing indicator
A/T: 15 ± 5° BTDC (in P or N position)
M/T: 15 ± 5° BTDC (in Neutral position)
PBIB3530E

EC-76
BASIC SERVICE PROCEDURE
Revision: 2006 November2007 350Z
Idle Speed and Ignition Timing CheckNBS00035
IDLE SPEED
With CONSULT-III
Check idle speed in “DATA MONITOR” mode with CONSULT-III.
With GST
Check idle speed in Service $01 with GST.
IGNITION TIMING
1. Attach timing light to loop wire as shown.
2. Check ignition timing.
Procedure After Replacing ECMNBS006SZ
When replacing ECM, the following procedure must be performed.
1. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-152, "
ECM Re-communicating Function" .
2. Perform EC-76, "
VIN Registration" .
3. Perform EC-76, "
Exhaust Valve Timing Control Learning" .
4. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
5. Perform EC-77, "
Throttle Valve Closed Position Learning" .
6. Perform EC-77, "
Idle Air Volume Learning" .
VIN RegistrationNBS00037
DESCRIPTION
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).
OPERATION PROCEDURE
With CONSULT-III
1. Check the VIN of the vehicle and note it. Refer to GI-46, "IDENTIFICATION INFORMATION" .
2. Turn ignition switch ON and engine stopped.
3. Select “VIN REGISTRATION” in “WORK SUPPORT” mode.
4. Follow the instruction of CONSULT-III display.
Exhaust Valve Timing Control LearningNBS00038
DESCRIPTION
Exhaust Valve Timing Control Learning is an operation to learn the characteristic of exhaust valve timing con-
trol magnet retarder by comparing the target angle of exhaust camshaft with the actual retarded angle of
exhaust camshaft. It must be performed each time exhaust valve timing control magnet retarder is discon-
nected or replaced, or ECM is replaced.
1. Loop wire
A. Timing light B. Timing indicator
PBIB3526E