Golf GTI L4-2.0L (ABA) (1997)
-
Check HO2S wiring procedures, listed Below.
If the specification is attained:
-
Replace HO2S -G39- (before three way catalytic converter).
Checking Heated Oxygen Sensor (HO2S) Wiring.
-
Connect VAG 1598/18 test box to ECM wiring harness.
-
Separate 4-pin connector -1- (black) to HO2S -G39- (before three way catalytic converter).
-
Check wiring between test box and 4-pin connector for open circuit according to wiring diagram (ECM side of harness connector).
-
Terminal 3 and test box socket 42
-
Terminal 4 and test box socket 20
-
Resistance: Maximum 1.5 Ohms
-
Additionally, check wiring at 4-pin connector for short circuit to one another.
Terminal 4 and test box socket 42.
-
Specification: Infinite Ohms
-
Check shielding for short circuit to HO2S wiring according to wiring diagram.
-
Terminal 4 and test box socket 56
-
Terminal 3 and test box socket 56
-
Specification: Infinite ohms
If no wiring malfunction is detected:
-
Replace ECM -J220-.
-
Read the readiness code, If DTC memory has been erased, repair must be verified via appropriate display group: See Readiness code, creating.