engine oil MAZDA PROTEGE 1992 Manual Online

TROUBLESHOOTING GUIDE
DIAGNOSTIC INDEX
No. TROUBLESHOOTING ITEM DESCRIPTION
1 Will not crank or cranks slowly Refer to Engine Electrical System PAGE
G- 4
Engine cranks at normal speed but shows no sign of 1 F-30
Engine cranks at normal speed but shows only par-
I
tial combustion and will not continue to run
Engine starts normally when cold, but will not start af-
After warm-up
5 Cranks normally but
Always
hard to start Engine cranks at normal speed but requires exces-
sive cranking time before starting F-36
F-38
I----
F-40 Same condition as No.5 when engine cold
Restarts normally after warm-up
Same cond;ion as No.5 after running and hot
soaked
Starts normally when cold
8
H
Rough idle
9 (Low idle speed)/
Engine stalls at idle Enaine stalls or vibrates excessivelv at idle
Engine stalls or vibrates excessively at idle during
warm-up 1 F-42
F-44
Engine runs normally at idle during warm-up but
vibrates excessively or stalls after warm-up
Engine stalls or vibrates excessively at idle when
A/C, P/S, or E/L ON F-46
F-46
starting (acceleration from idle)
l---- Engine stalls or vibrates excessively only just after
Idle speed excessive after warm-up 1 F-50 F-49 12 Rough idle/Engine stalls just after starting
13 High idle speed after warm-up
1 14 1 Idle moves up and down/Idle hunting Engine speeds up and down periodically at idle
1 F-52
I l5 I Engine stalls on deceleration
Engine unexpectedly stops running while decelerat-
ing or after deceleration F-54
Engine intermittently stops running
Flat spot occurs just after accelerator depressed or
mild jerkrng occurs during acceleration
Unexpected change in engine speed which is usually
repetitive F-56
F-57
F-59 16 Engine stalls suddenly (Intermittent)
17 Hesitates/Stumbles on acceleration
1 18 1 Surges while cruising
19
I I
Lack of power Performance poor under load when throttle valve F-61
wide open
Maximum speed reduced
Performance poor-while accelerating
-I- F-65 20 Poor acceleration
21 Runs rough on deceleration/Backfire Engine runs rough while decelerating and abnormal
combustion occurs in exhaust system F-69
Abnormal combustion accompanied by audible
“pinging” noise
Gasoline odor in cabin 22 Knocking
23 Fuel odor
24 Exhaust sulfur smell
26 High oil consumption Exhaust gas smells abnormal
Oil consumption excessive
Fuel economy unsatisfactory 1 26 1 Poor fuel economy 1 F-75
Self-Diagnosis Checker does not indicate malfunction
23UOFX~O’
F-27

F TROUBLESHOOTING GUIDE
15
ENGINE STALLS ON DECELERATION
DESCRIP-
l Engine unexpectedly stops running while decelerating or after deceleration
TION l Idle condition normal
[TROUBLESHOOTING HINTS]
Engine speed drops too much when releasing accelerator or poor connector connection disconnected by deceleration
force
3 Idle speed control malfunction
3 Fuel cut control malfunction @ Idle speed misadjustment
TEP INSPECTION
ACTION
1
Check if idle condition is normal Yes
Go to next step
No Adjust or perform troubleshooting
Nos. 8-11 “ROUGH IDLE” v page F-42
F-48
--
2
Check if “00” is displayed on Self-Diagnosis Yes Go to next step
Checker with ignition switch ON
W page F-82 No
SYSTEM SELECT: 1 Service Code No. displayed
Check for cause (Refer to specified
check sequence) w page F-83
“88” flashes
Check ECU terminal IF voltage LIT= page F-150
Specification: Battery voltage
(Ignition switch ON)
W: SELF TEST + If OK, replace ECU w page F-149
Q If not OK, check wiring between
ECU and Self-Diagnosis Checker
3 Check switches for correct operation with Self-
Yes Go to next step
Diagnosis Checker Monitor Lamp with ignition
switch ON
w page F-105 No
Lamp not ON or OFF with specified
switch
Check for cause (Refer to specified
check sequence) CT page F-106
-,-y/
,’ Lamp always ON
Check wiring between ECU terminal 1 D
and Self-Diagnosis Checker
W: SELF
TEST
4 Check if ECU terminal voltages are OK
Yes Go to next step
MTX...Especially IV, 2D, 20, 2U, 2V and 2Q
ATX... Especially 28, 2E, 30, 3U, and 3V
w page F-150 No Check for cause w page F-151
5
Check for poor connection of following parts
Yes Repair or replace
. Ignition coil
l Igniter l Distributor
-- l High-tension lead
No l Injector Go to next step l Circuit opening relay l ECU
F-54

TROUBLESHOOTING GUIDE
16 ENGINE STALLS SUDDENLY (INTERMITTENT)
DESCRIP- l Engine intermittently stops running
TION l Before stalling, engine condition OK [TROUBLESHOOTING HINTS]
@ Intermittently no spark or no-fuel injection caused by ve-
hicle vibration, acceleration, or deceleration
*Poor connection in wire harness
3 INSPECTION
Check if “00” is displayed on Self-Diagnosis
Checker with ignition switch ON c7 page F-82
g
-%ELECT SW: A
Check for poor connection of following parts l ignition coil
l igniter l Distributor l High-tension lead l lniector
l Ci;cuit opening relay l ECU
Check if ECU terminal voltages are OK
MTX...Especially lB, 2A, 28 and 2C
ATX... Especially lB, 3A, 38 and 3C w page F-150
Note
l When checking voltages, tap, move, and
wiggle harness and connector to recreate
problem
Yes
No Service Code No. displayed
Check for cause (Refer to specified
check sequence) Note
l When checking wiring harness and
connectors, tap, move, and wiggle
suspect sensor and/or harness to
recreate problem
“88” flashes
Check ECU terminal IF voltage w page F-150
Specification: Battery voltage
(Ignition switch ON)
c3 If OK, replace ECU CT= page F-149
+ If not OK, check wiring between
ECU and Self-Diagnosis Checker
Yes
Repair or replace
No Go to next step
Yes
No
T ACTION
Go to next step w page F-83
Go to Troubleshooting No.2
‘CRANKS NORMALLY BUT WILL NOT
START (NO COMBUSTION)” CT- page F-30
Check for cause D page F-151
F-56

TROUBLESHOOTING GUIDE F
DAMAGE AND
DETERIORATION
Check if resistance of high-tension leads are OK Resistance: 16 kQ per 1 m (3.26 ft)
li;;g
‘&
d No
Replace
.
12 Check if resistance of ignition coil is OK Yes Go to next step c7 page G-19
Resistance (at 20°C [6SaF]):
Primary coil winding . . . . . . . . 0.61-0.99n
Secondary coil winding.... lo-16 kdl
PRIMARY COIL SECONDARY COIL
WINDING
WINDING
No
Replace
13 Check for correct engine compression Yes Go to next step u page Bl-10
92-10 No
Check engine condition ~7 page 81-10
Engine compression: 82-l 0
. BP DOHC
*Worn piston, piston rings or cylinder 663 kPa (9.0 kg/cm2, 126 psi)-300 rpm wall
l BP SOHC l Defective cylinder head gasket 634 kPa (6.5 kg/cm2, 121 psi)-300 rpm l Distorted cylinder head
l 66 l improper valve seating 932 kPa (9.5 kg/cm2, 136 psi)300 rpm *Valve sticking in guide
14 Change fuel and check if condition improves Yes Change fuel to another brand
No SOHC
Go to Step 16 DOHC
Go to next step
F-63

TROUBLESHOOTING GUIDE F
TEP INSPECTION ACTION
9 Check if airflow meter is OK Yes Go to next step
CT page F-168
I. Check if measuring plate moves smoothly
II. Check resistance No Repair or replace
Fc Ei Vc Ez Vs THA
WEAR AND CARBON BUILDUP
DAMAGE AND
DETERIORATION
Resistance (at 20% [68OF]):
Primary coil winding . . . . . . . . 0.81-0.99Q
Secondary coil winding.... IO-16 kQ
PRIMARY COIL SECONDARY COIL
cc;i’ page 81-10
Engine compression (Minimum):
883 kPa (9.0 kg/cm*, 128 psi)-300 rpm
834 kPa (8.5 kg/cm*, 121 psi)-300 rpm
932 kPa (9.5 kg/cm2, 135 psi)-300 rpm *Worn piston, piston rings or cylinder
l Defective cylinder head gasket l Distorted cylinder head
l improper valve seating
*Valve sticking in guide
F-67

F TROUBLESHOOTING GUIDE
I 24 I EXHAUST SULFUR SMELL I
DESCRIP-
l Exhaust gas smells abnormally
TION
[TROUBLESHOOTING HINTS]
High sulfur content fuel used
STEP INSPECTION
1
Change fuel to another brand ACTION
03UOFX-039
25 HIGH OIL CONSUMPTION
DESCRIP-
l Oil consumption excessive
TION
[TROUBLESHOOTING HINTS]
@ PCV system malfunction
@ Engine malfunction (Oil working up, working down, or leakage)
iTEP
INSPECTION
1 Check if PCV hose, ventilation hose or their at- Yes Repair or replace
taching nipples are separated, damaged,
clogged, or restricted
w page F-138 No Go to next step
2 Check if air pressure or oil is present at ventila- Yes Go to next step
tion hose ACTION
No Check engine condition w page 81-3
82-3
l Oil leakage
*Worn valve seal
*Worn valve stem
*Worn valve guide
3 Check if vacuum is felt at PCV valve at idle Yes Check engine condition w page 91-3
w page F-138 82-3
*Worn piston ring groove
*Stuck piston rings l
Worn piston or cylinder
No Replace PCV valve
23UOFX-040 /-.
F-74

F ENGINE TUNE-UP
ENGINE TUNE-UP
PREPARATlON
SST
I
I I
49 BO19 9AO
System Selector For
inspection of igni-
tion timing and
idle speed
hA ‘I
03UOFX-04
03UOFX-04
03UOFX-04
NG POINT
03UOFX-04 03UOFX-045
BASIC INSPECTION
Engine Oil
1. Remove the engine oil level gauge and check the engine
oil level and oil condition.
2. Add or change the oil as necessary.
Coolant
Warning
l Never remove the radiator cap while the engine is
hot.
l Wrap a thick cloth around the cap before carefully
removing it.
1. Remove the coolant level gauge from the coolant reservoir.
2. Check that the coolant level is between the L and F marks
of the gauge.
3. Add coolant if necessary.
Battery
1. Check for corrosion on the terminals and for loose cable
connections. If necessary, clean the clamps and tighten
them firmly.
2. Check that the electrolyte level is between the UPPER LEV-
EL and LOWER LEVEL marks.
3. Add distilled water if necessary.
4. Check the specific gravity with a hydrometer.
Gravity: 1.27-l .29 (at 20% [68OF] )

ENGINE TUNE-UP F
03UOFX.051
03UOFX-051
- w4TEN I
Air Cleaner Element
Inspection
1. Check the air cleaner element for excessive dirt, damage,
or oil.
Caution
l Do not use compression air to clean the element.
2. Replace the element if necessary.
ADJUSTMENT
Preparation
1. Warm up the engine to normal operating temperature.
2. Turn all electric loads OFF.
3. Connect the
SST to the diagnosis connector.
4. Connect a timing light.
5. Connect a tachometer to the diagnosis connector
IG- ter-
minal as shown.
6. Set switch @to position 1.
7. Set TEST SW to SELF-TEST.
Note
l If the SST is not used, jump across the TEN termi-
nal and the GND terminal of the diagnosis con-
nector.
Ignition Timing
1. Perform “Preparation”. (Refer to above.)
2. Check if the timing mark (yellow) on the crankshaft pulley
and the mark on the timing belt cover are aligned.
Specification:
Engine
Ignition Timing BTDC B6 BP SOHC BP DOHC
6O-8* 4O--6O go-110
SOHC DOHC
I 03UOFX-054
3. If the marks are not aligned, loosen the distributor lock bolts,
and turn the distributor to make the adjustment.
4. Tighten the distributor lock bolts to the specified torque.
Tightening torque:
19-25 N#m (1.9-2.6 m-kg, 14-19 ft-lb)
5. Disconnect the SST.
F-79

FUEL SYSTEM I-
9MUOF2-17
INJEC
GRO
,:.: ‘.L.. :
,;:y :.*‘.
+:: ..y&
..: .:: ,: ,:y>
‘$pID~~ :i
..,..:,:,
,.,i. :)I,
./[::/: :
. ...:;.
/jj,.‘, ;.::,::
.’ .::: ij!/ji..
OSUOFX-17
T MANIFOLD DELIVERY’ PIPE
MUOFX-17
Installation
Install in the reverse order of removal, referring to Installa-
tion Note.
Tightening torque:
Delivery pipe
19-25 N.m (1.9-2.6 m-kg, 14-19 ft-lb)
Installation note
1. Use new injector O-rings.
2. Apply a small amount of clean engine oil to the O-rings be-
fore installing.
3. Install new injector insulators.
4. Install the injectors.
F-l 33

G
ENGINE ELECTRICAL SYSTEM
INDEX ......................................................
OUTLINE ..................................................
SPECIFICATIONS .................................... G- 3
TROUBLESHOOTING
GUIDE.. .................... G-
4
DIAGNOSTIC INDEX ................................
SYMPTOM TROUBLESHOOTING..
............. :- t
-
CHARGING SYSTEM ................................. G- 6
PREPARATION .......................................
CIRCUIT DIAGRAM ................................. :I ;
TROUBLESHOOTING .............................. G- 7
BATTERY ............................................... G- 6
ALTERNATOR ........................................ G-10
DRIVE BELT ........................................... G-14
IGNITION SYSTEM .................................... G-15
PREPARATION ....................................... G-15
CIRCUIT DIAGRAM ................................. G-15
TROUBLESHOOTING .............................. G-16
IGNITION TIMING ................................... G-17
HIGH-TENSION LEAD .............................. G-17
SPARK PLUGS ....................................... G-16
IGNITION COIL ....................................... G-19
DISTRIBUTOR ........................................ G-20
IGNITER ................................................ G-23
STARTING SYSTEM .................................. G-24
PREPARATION ....................................... G-24
CIRCUIT DIAGRAM ................................. G-24
STARTER ...............................................
G-25
STARTER INTERLOCK SWITCH (MTX)
........ G-31
03UOGX-001