1997 TOYOTA SUPRA fuel
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P11446Fuel Inlet Hose
P11799
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-155
383 Author: Date:
1997 SUPRA (RM502U)
7 Check fuel pressure.
PREPARATION:
(a) Be sure that enough fuel is in the tank.
(b) Turn ignition switch ON.
(c) Connect the TOYOTA hand-held tester to DLC3 on the
vehicle.
(d) Use ACTIVE TEST mode to operate the fuel pump.
(e) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See page SF-5).
CHECK:
Check for fuel pressure in the fuel inlet hose when it is pinched
off.
HINT:
At this time, you will hear the sound of flowing.
NG Proceed to page SF-5 and continue
totroubleshoot.
OK
8 Check for spark.
PREPARATION:
(a) Remove ignition coil (See page IG-6).
(b) Remove spark plug.
(c) Install the spark plug to the ignition coil, and connect the
ignition coil connector.
(d) Ground the spark plug.
CHECK:
Check if spark occurs while the engine is being cranked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, don't crank the engine for more than 5 ~ 10
sec. at a time.
NG Proceed to page IG-1 and continue to
troubleshoot.
OK
Proceed to matrix chart of problem systems
on page DI-169.
Page 571 of 1807
DI-156
- DIAGNOSTICSENGINE (2JZ-GTE)
384 Author: Date:
1997 SUPRA (RM502U)
7. ENGINE OPERATING CONDITION
NOTICE:
The values given below for ºNormal Conditionº are representative values, so a vehicle may still be
normal even if its value varies from those listed here. So do not decide whether a part is faulty or not
solely according to the ºNormal Conditionº here.
(a) CARB Mandated Signals
TOYOTA hand-held
tester displayMeasurement ItemNormal Condition*
FUEL SYS #1
Fuel System Bank 1
OPEN: Air-fuel ratio feedback stopped
CLOSED: Air-fuel ratio feedback operatingIdling after warmed up:
CLOSED
CALC LOADCalculator Load:
Current intake air volume as a proportion of max. intake air volumeIdling: 6.7 - 11.0 %
Racing without load
(2,500 rpm): 7.0 - 11.3 %
COOLANT TEMPEngine Coolant Temperature Sensor ValueAfter warmed up:
80 - 95°C (176 - 203°F)
SHORT FT #1Short - term Fuel Trim Bank 10 ± 20 %
LONG FT #1Long - term Fuel Trim Bank 10 ± 20 %
ENGINE SPDEngine SpeedIdling: 650 ± 50 rpm
VEHICLE SPDVehicle SpeedVehicle stopped:
0 km/h (0 mph)
IGN ADVANCEIgnition Advance
Ignition Timing of Cylinder No.1Idling: BTDC 10 ~ 20°
INTAKE AIRIntake Air Temperature Sensor ValveEquivalent to Ambient Temp.
MAFAir Flow Rate Through Mass Air Flow Meter
Idling: 2.9 - 4.8 gm/sec
Racing without load
(2,500 rpm):
11.7 - 18.8 gm/sec
THROTTLE POSVoltage Output of Throttle Position Sensor Calculated as a Percentage
0 V " 0 %, 5 V " 100 %Throttle
Fully Closed: 7 - 11 %
Fully Open: 65 - 75 %
O2S B1, S1Voltage Output of Oxygen Sensor Bank1, Sensor 1Idling: 0.1 - 0.9 V
O2FT B1, S1Oxygen Sensor Fuel Trim Bank1, Sensor 1
(Same as SHORT FT #1)0 ± 20 %
02S, B1, S2Voltage Output of Oxygen Sensor Bank 1, Sensor 2Driving 50 km/h (31 mph):
0.1 - 0.9 V
*: If no conditions are specifically stated for ºidlingº, it means the shift lever is at N or P position, the A/C switch
is OFF and all accessory switches are OFF.
Page 572 of 1807
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-157
385 Author: Date:
1997 SUPRA (RM502U)
(b) TOYOTA Enhanced Signals
TOYOTA hand-held
tester displayMeasurement ItemNormal Condition*
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 rpm
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 0 g/r
INJECTORFuel injection time for cylinder No.1Idling: 1.3 ~ 2.7 ms
IAC STEP POSIntake Air Control Valve Step Position Opening position step motor type IAC valveIdling: 10 ~ 50 step
STARTER SIGStarter SignalCranking: ON
CTP SWClosed Throttle Position Switch SignalThrottle fully closed: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SWPark / Neutral Position Switch SignalP or N position: ON
ELECTRICAL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut after between 20 sec. at light loadFuel cut operating: ON
CYL #1
CYL #2
CYL #3
CYL #4
CYL #5
CYL #6
Abnormal revolution variation for each cylinder0%
IGNITIONTotal number of ignitions for every 1,000 revolutions0 ~ 3,0000
EGRT GASEGR Gas Temperature Sensor Value
EGR not operating:
Temperature between intake
air temp. and engine coolant
temp.
FUEL PRES UP VSVFuel Pressure Up VSV SignalHigh temp. restarting: ON
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
A/C MAG CLUTCHA/C Magnetic Clutch SignalA/C ON: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: ON
TURBO BOOST VSVWaste gate valve VSV signalVSV operating: ON
INTK AIR CTL VSVIntake Air Control Valve VSV SignalVSV operating: OFF
EXH GAS CTL VSVExhaust Gas Control Valve VSV SignalVSV operating: OFF
EXH BYPASS VSVExhaust Bypass Valve VSV SignalVSV operating: OFF
TOTAL FT B1Total Fuel Trim Bank 1: Average value for fuel trim system of bank 1Idling: 0.8 ~ 1.2
TOTAL FT B2Total Fuel Trim Bank 2: Average value for fuel trim system of bank 2Idling: 0.8 ~ 1.2
02 LR B1, S1Oxygen Sensor Lean Rich Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from lean to rich.Idling after warmed up:
0 ~ 1,000 m sec.
02 RL B1, S1Oxygen Sensor Rich Lean Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from rich to lean.Idling after warmed up:
0 ~ 1,000 m sec.
*: If no conditions are specifically stated for ºIdlingº, it meas the shift lever is at N or P position, the A/C switch
is OFF and all accessory switches are OFF.
Page 573 of 1807
DI4SI-01
DI-158
- DIAGNOSTICSENGINE (2JZ-GTE)
386 Author: Date:
1997 SUPRA (RM502U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in check mode, check the circuit for that code listed
in the table below. For details of each code, turn to the page reffered to under the ºSee pageº for the respec-
tive ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P0100
(DI-170)Mass Air Flow Circuit
MalfunctionOpen or short in mass air flow meter circuit
Mass air flow meter
ECM
P0101
(DI-174)Mass Air Flow Circuit
Range / Performance ProblemMass air flow meter
P0110
(DI-175)Intake Air Temp. Circuit
MalfunctionOpen or short in intake air temp. sensor circuit
Intake air temp. sensor
ECM
P0115
(DI-179)Engine Coolant Temp. Circuit
MalfunctionOpen or short in engine coolant temp. sensor circuit
Engine coolant temp. sensor
ECM
P0116
(DI-183)Engine Coolant Temp. Circuit
Range / Performance ProblemEngine coolant temp. sensor
Cooling system
P0120
(DI-184)Throttle / Pedal Position
Sensor / Switch ºAº Circuit
MalfunctionOpen or short in throttle position sensor circuit
Throttle position sensor
ECM
P0121
(DI-189)Throttle /Pedal Position
Sensor / Switch ºAº Circuit
Range / Peformance Problem
Throttle position sensor
P0125
(DI-190)Insufficient Coolant Temp. for
Closed Loop Fuel ControlOpen or short in heated oxygen sensor circuit
Heated oxygen sensor
P130
(DI-193)Heated Oxygen Sendor Circuit
Malfunction
(Bank 1 Sensor 1)Heated oxygen sensor
Fuel trim malfunction
P0133
(DI-196)Heated Oxygen Sensor Circuit
Slow Response
(Bank 1 Sensor 1)
Heated oxygen sensor
*: ... MIL lights up
Page 574 of 1807
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-159
387 Author: Date:
1997 SUPRA (RM502U)DTC No.
(See Page)
Detection ItemTrouble AreaMIL*Memory
P0135
(DI-197)Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 1)Open or short in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
ECM
P0136
(DI-199)Heated Oxygen Sensor Circuit
Malfunction
(Bank 1 Sensor 2)
Heated oxygen sensor
P0141
(DI-197)Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 2)
Same as DTC No. P0135
P0171
(DI-201)System too Lean
(Fuel Trim)
Air Intake (hose loose)
Fuel line pressure
Injector blockage
Heated oxygen sensor malfunction
Mass air flow meter
Engine coolant temp. sensor
P0172
(DI-201)System too Rich
(Fuel Trim)
Fuel line pressure
Injector blockage, leak
Heated oxygen sensor malfunction
Mass air flow meter
Engine coolant temp. sensor
P0300
(DI-204)Random / Multiple Cylinder
Misfire DetectedIgnition system
In
jector
P0301
P0302
P0303
P0304
P0305
P0306
(DI-204)Misfire Detected
- Cylinder 1
- Cylinder 2
- Cylinder 3
- Cylinder 4
- Cylinder 5
- Cylinder 6
Injector
Fuel line pressure
EGR
Compression pressure
Valve clearance not to specification
Valve timing
Mass air flow meter
Engine coolant temp. sensor
P0325
(DI-209)Knock Sensor 1 Circuit
MalfunctionOpen or short in knock sensor 1 circuit
Knock sensor 1 (looseness)
ECM
P0330
(DI-209)Knock Sensor 2 Circuit
MalfunctionOpen or short in knock sensor 2 circuit
Knock sensor 2 (looseness)
ECM
P0335
(DI-212)Crankshaft Position
Sensor ºAº Circuit
Malfunction
Open or short in crankshaft position sensor circuit for NE sig-
nal
Crankshaft position sensor for NE signal
Starter
ECM
*: ... MIL lights up
Page 576 of 1807
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-161
389 Author: Date:
1997 SUPRA (RM502U)
DTC CHART (Manufacture Controlled)
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P1100
(DI-247)Barometric Pressure Sensor Cir-
cuit MAlfunctionECM
P1200
(DI-248)Fuel Pump Relay / ECU Circuit
Malfunction
Open or short in fuel pump ECU circuit
Fuel pump ECU
ECM power source circuit
Fuel pump
ECM
-
P1300
(DI-252)Igniter Circuit
MalfunctionOpen or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM
P1335
(DI-257)Crankshaft Position Sensor
Circuit Malfunction (during
engine running)
Open or short in crankshaft position sensor circuit for NE sig-
nal
Crankshaft position sensor for NE signal
Starter
ECM
-
P1400
(DI-258)Sub Throttle Position Sensor
MalfunctionOpen or short in sub throttle position sensor circuit
Sub throttle position sensor
ECM
P1401
(DI-261)Sub Throttle Position Sensor
Range / Performance ProblemSub throttle position sensor
P1405
(DI-262)Turbo Pressure Sensor Circuit
MalfunctionOpen or short in turbo pressure sensor circuit
Turbo pressure sensor
ECM
P1406
(DI-265)Turbo Pressure Sensor Circuit
Range / Performance ProblemTurbo pressure sensor
P1511
(DI-266)Boost Pressure Low
Malfunction
Air intake (leakage or clogging)
Actuator (for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve)
Short in VSV for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve circuit
ECM
P1512
(DI-274)Boost Pressure High
Malfunction
Actuator (for waste gate valve and exhaust bypass valve)
Short in VSV for waste gate valve and exhaust bypass valve
circuit
ECM
P1520
(DI-279)Stop Light Switch Signal
MalfunctionShort in stop light switch signal circuit
Stop light switch
ECM
P1600
(DI-282)ECM BATT
MalfunctionOpen in back up power source circuit
ECM
*: .... MIL dose not light up
... MIL lights up
Page 578 of 1807
DI4SJ-01
S04073
Throttle Control ECU
VSV for Intake
Air Control Valve
(VSV1)
VSV for EXhaust
Bypass Valve
(VSV3) Heated Oxygen Sensor
(Bank 1 Sensor 1)
Ignition Coil
Mass Air Flow Meter
(Intake Air Temp. Sensor)
Engine Coolant Temp.
Sensor
VSV for Exhaust
Gas Control Valve
(VSV 2)
VSV for Waste
Gate Valve
(VSV4)VSV for EGR
ECM
IAC Valve
DLC1EGR Gas Temp. Sensor
Ignition Switch
Combination Meter
& Telltale Light RH
Fuel Pump ECU
Fuel Pump
No.1 Vehicle Speed Sensor
DLC3
Park/Neutral Position Switch
Stop Light Switch
Heated Oxygen Sensor
(Bank 1 Sensor 2) Igniter
Knock Sensor 2
Camshaft Position Sensor No.2
VSV for EVAP
Turbo Pressure Sensor
Camshaft Position Sensor No.1
Throttle Position Sensor
Sub Throttle Actuator Knock Sensor 1
Sub Throttle Position Sensor
Crankshaft Position Sensor
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-163
391 Author: Date:
1997 SUPRA (RM502U)
PARTS LOCATION
Page 584 of 1807
DI4SL-01
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-169
397 Author: Date:
1997 SUPRA (RM502U)
PROBLEM SYMPTOMS TABLE
When the malfunction code is not confirmed in the DTC check and the problem still can not be confirmed
in the basic inspection, then proceed to this step and perform troubleshooting according to the numbered
order given in the table below.
SymptomSuspect AreaSee page
Does not start (Engine does not crank)1. Starter and Starter relayST-14, ST-16
Does not start (No initial combustion)
1. ECM power source circuit
2. Fuel pump control circuit
3. Engine control module (ECM)DI-304
DI-248
IN-18
Does not start (No complete combustion)1. Fuel pump control circuitDI-248
Difficult to start (Engine cranks normally)
1. Starter signal circuit
2. Fuel pump control circuit
3. CompressionDI-301
DI-248
EM-3
Difficult to start (Cold engine)1. Starter signal circuit
2.Fuel pump control circuitDI-301
DI-248
Difficult to start (Hot engine)
1. Starter signal circuit
2. Fuel pressure control circuit
3. Fuel pump control circuitDI-301
DI-309
DI-248
Poor idling (High engine idle speed)1. A/C signal circuit
2. ECM power source circuitDI-722
DI-304
Poor idling (Low engine idle speed)1. A/C signal circuit
2. Fuel pump control circuitDI-722
DI-248
Poor idling (Rough idling)1. Compression
2. Fuel pump control circuitEM-3
DI-248
Poor idling (Hunting)1. ECM power source circuit
2. Fuel pump control circuitDI-304
DI-248
Poor Driveability (Hesitation/Poor acceleration)1. Fuel pump control circuit
2. A/T faultyDI-248
DI-391
Poor Driveability (Surging)1. Fuel pump control circuitDI-248
Engine stall (Soon after starting)1. Fuel pump control circuitDI-248
Engine stall (During A/C operation)1. A/C signal circuit
2. Engine control module (ECM)DI-722
IN-18