Any ideas guys? The 2 codes don't seem related at all with the exception of a faulty ECM and that the engine running rich might have fouled the 02 sensors.
BTW, here's what the FSM says for the two codes under "trouble area":
21:
- Heated oxygen sensor circuit
- Heated oxygen sensor
- ECM
26:
- Engine ground bolt loose
- Open in E1 circuit
- Injector circuit
- Injector
- Fuel line pressure
- ECT sensor
- Compression pressure
- ECM
Light's been on for a while, but hadn't gotten around to checking it since the truck seems to be running fine.
The exhaust does smell rich and it smells like a two-stroke upon cold startup, but I don't think those two symptoms are related to eachother.
BTW, here's what the FSM says for the two codes under "trouble area":
21:
- Heated oxygen sensor circuit
- Heated oxygen sensor
- ECM
26:
- Engine ground bolt loose
- Open in E1 circuit
- Injector circuit
- Injector
- Fuel line pressure
- ECT sensor
- Compression pressure
- ECM
Light's been on for a while, but hadn't gotten around to checking it since the truck seems to be running fine.
The exhaust does smell rich and it smells like a two-stroke upon cold startup, but I don't think those two symptoms are related to eachother.