Related Sensors Inspection

WARNING: This page is about a different variant/trim than selected.

Visually/physically inspect the following items:
- Ensure that the HO2S is securely installed.
- Silicon contamination. This contamination will be indicated by a white powdery coating on the portion of the sensor exposed to the exhaust stream and this will result in a but false (high) voltage signal
- Fuel, engine coolant or oil contamination
- Use of improper sealant
- If contamination is evident on the HO2S, Fix the source of the sensor contamination before replacing the sensor to prevent future contamination. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Visually/physically inspect contamination or poor performance/poor connection of mass air flow sensor.
Check if throttle position sensor signal is in proportion to a gas pedal while driving.
Check the ground state of the ECM.
Has a problem found in this procedure?
YES
- Repair or replace as necessary. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to "FUEL LINE INSPECTION " as follows