Hey everyone,
I've got the following CEL's. 1.4T manual Sonic, stock tune, stock parts with the exception of a ported IM (done nearly 70k miles ago so I don't think it's related)
p0030
p0031
p0036
p0037
p0135
p0138
p0140
p0141
All of the codes are related to O2 sensors. Just replaced the first/primary O2 sensor with a brand new AC Delco unit and codes came back. Most of the time the car runs without issue, but a few times now it's struggled to keep the engine running and stalled -only to return to normal a few minutes later after much blipping to keep the engine running.
Any ideas? I have the feeling it's got to be an electrical gremlin somewhere, blown fuse or ground or something but I don't know where to start... I could also be way off.
Any help is greatly appreciated!
I've got the following CEL's. 1.4T manual Sonic, stock tune, stock parts with the exception of a ported IM (done nearly 70k miles ago so I don't think it's related)
p0030
p0031
p0036
p0037
p0135
p0138
p0140
p0141
All of the codes are related to O2 sensors. Just replaced the first/primary O2 sensor with a brand new AC Delco unit and codes came back. Most of the time the car runs without issue, but a few times now it's struggled to keep the engine running and stalled -only to return to normal a few minutes later after much blipping to keep the engine running.
Any ideas? I have the feeling it's got to be an electrical gremlin somewhere, blown fuse or ground or something but I don't know where to start... I could also be way off.
Any help is greatly appreciated!
