lights NISSAN 350Z 2007 Z33 Engine Control Owner's Manual

DTC P2138 APP SENSOR
EC-651
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureNBS000HG
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V at idle.
WITH CONSULT-III
1. Start engine and let it idle for 1 second.
2. Check DTC.
3. If DTC is detected, go to EC-654, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2138
2138Accelerator pedal posi-
tion sensor circuit
range/performanceRationally incorrect voltage is sent to ECM
compared with the signals from APP sensor 1
and APP sensor 2.

Harness or connector
(The APP sensor 1 and 2 circuit is open
or shorted.)
Harness or connectors
(APP sensor 2 dircuit is open or
shorted.)
[CKP sensor (POS) circuit is open or
shorted.]
[CMP sensor (PHASE) (bank 2) circuit is
shorted.]
[EVT control position sensor (bank 2) cir-
cuit is shorted.]
(EVAP control system pressure sensor
circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)

Accelerator pedal position sensor
(APP sensor 1 and 2)

Crankshaft position sensor (POS)

Camshaft position sensor (PHASE)
(bank 2)

Exhaust valve timing control position
sensor (bank 2)

EVAP control system pressure sensor

Refrigerant pressure sensor
Engine operating condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

EC-718
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 November2007 350Z
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureNBS000IJ
Idle Speed and Ignition TimingNBS000IK
*: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Calculated Load ValueNBS000IL
Mass Air Flow SensorNBS000IM
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorNBS000IN
Engine Coolant Temperature SensorNBS000IO
Air Fuel Ratio (A/F) Sensor 1 HeaterNBS000IP
Heated Oxygen sensor 2 HeaterNBS000IQ
Crankshaft Position Sensor (POS)NBS000IR
Refer to EC-393, "Component Inspection" .
Camshaft Position Sensor (PHASE)NBS000IS
Refer to EC-405, "Component Inspection" .
Fuel pressure at idling kPa (kg/cm2 , psi)Approximately 350 (3.57, 51)
Target idle speedA/T No load* (in P or N position)
650 ± 50 rpm
M/T No load* (in Neutral position)
Air conditioner: ONA/T In P or N position 650 rpm or more
M/T In Neutral position 800 rpm or more
Ignition timingA/T In P or N position
15° ± 5° BTDC
M/T In Neutral position
Conditions Calculated load value % (Using CONSULT-III or GST)
At idle5 - 35
At 2,500 rpm5 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.8 - 1.1V*
Mass air flow (Using CONSULT-III or GST)2.0 - 6.0 g·m/sec at idle*
7.0 - 20.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.800 - 2.200
Temperature °C (°F) Resistance kΩ
20 (68)2.37 - 2.63
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Resistance [at 25°C (77°F)] 1.8 - 2.44Ω
Resistance [at 25°C (77°F)] 3.4 - 4.4Ω