[FlyingDutchman]

Rebuild a car they said, it will be fun they said! Seems like every week is a new issue

Got a tune and installed my 30# injectors, then started getting p0152 for passenger side heater circuit. In the process of trouble shooting I ended up getting p0132 for the driver side too! obviously with this code the car jumps out of closed loop so my mileage suffers.

Here's what I did so far to trace my issue, maybe someone has had this problem?


First:
- Swapped O2 sensors to verify code did not follow sensor. Code cleared itself and was able to drive three consecutive cycles with success. Then P0152 came back on the fourth drive.

Second:
- Verified 12v at O2 harness for both sides and tested continuity.
- With key ON, engine COLD, noted both sensors do warmup by physically feeling exhaust pipe warm up around bung.
- with key ON, read approx 0.6v at O2 feed from PCM at harness.
- Disconnected passenger side O2/knock/starter/ground/CPS sensors and inspected wiring harness up to splice in main harness, no obvious breaks or kinks.


I do have logs from Ecm pro scan if anyone wants one to see what's going on. The O2s are definitely moving. Although the driver side seems to stay on the richer side more often. Help!