DTC DETECTION LOGIC
DTC No. | Trouble diagnosis name (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0127 | IAT SENSORB1 (Intake air temperature too high) | Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signal from engine coolant temperature sensor. |
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DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION:
This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Wait until engine coolant temperature is less than 96C (205F)
NOTE: Perform the following steps before engine coolant temperature is above 96C (205F).
CAUTION: Always drive vehicle at a safe speed.
With GST
Follow the procedure "With CONSULT" above.
Is 1st trip DTC detected?
YES >> Proceed to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK INTAKE AIR TEMPERATURE SENSOR
Check the intake air temperature sensor. Refer to EC, "Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM, "Removal and Installation".
Component Inspection
1.CHECK INTAKE AIR TEMPERATURE SENSOR
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM, "Removal and Installation".
Cylinder block
Exploded View
1. Crankshaft position sensor cover 2. Crankshaft position sensor (POS) 3.
Oring
4. Drain plug 5. Cylinder block 6. Oil level gauge
7. Oil level gauge guide 8. Oring 9. Knock sensor 10. Oil temperature sensor
11. Oil pressure sensor 12. Oil jet
13. Top ring 14. Second ring ...
Front suspension assembly
Inspection and Adjustment
INSPECTION
Make sure the mounting conditions (looseness, back lash) of each component
and component conditions
(wear, damage) are normal.
LOWER BALL JOINT END PLAY
Set front wheels in a straight-ahead position. Do not depress brake
pedal.
Place an iron bar ...