Possible Cause
NOTE:
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- A/F sensor (sensor 1) AFHT N line open
- A/F sensor (sensor 1) AFHT N line short to ground
- A/F sensor (sensor 1) failure
- PGM-FI subrelay circuit failure (includes fuse blown)