[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - INSPECTION PROCEDURE FOR DIAGNOSIS CODES - DTC P2173: Abnormal Intake Air Amount | PRINT PAGE / INDEX / PRIOR / NEXT

DTC P2173: Abnormal Intake Air Amount
FUNCTION Engine-A/T-ECU decides the allowable intake air amount in accordance with the engine speed and the target opening angle of throttle valve. Engine-A/T-ECU checks whether the actual intake air amount is more than the allowable intake air amount.
TROUBLE JUDGMENT Check Condition While engine is running. Judgment Criterion The actual intake air amount is more than the allowable in take air amount for 1.5 seconds.
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are: ) Failed air flow sensor. Throttle valve faulty operation. Failed throttle position sensor Failed engine-A/T-ECU
| DIAGNOSIS
| STEP 1. MUT-II/III diagnosis code Q: Diagnosis code set? YES: Inspection chart for diagnosis code (Refer to ). NO: Go to Step 2 .
| STEP 2. Replace the air flow sensor. After replacing the air flow sensor, re-check the trouble symptoms. Q: Is the check result normal? YES: Go to Step 3 . NO: Check end.
| STEP 3. Replace the throttle body assembly. After replacing the throttle body assembly, re-check the trouble symptoms. Q: Is the check result normal? YES: Replacing engine-A/T-ECU. NO: Check end.

[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - INSPECTION PROCEDURE FOR DIAGNOSIS CODES - DTC P2173: Abnormal Intake Air Amount | PRINT PAGE / INDEX / PRIOR / NEXT

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