#127432, "engine code" Aug-28-09 02:25 AM by barza21
Hello,
My check engine light came on today. I took it to autozone and it read error code PO171,
Based on that it means fuel mixture lean.
I went into the wiki and looked up what could be causing it. It says that it could be the map, oxygen sensor, or even a mechanical thing. I will do a compression test tomorrow, but what do you guys think it could be? Could it be what I have done to the engine? I have a low compression, race port on the head with 5 degree valve job, oversized valves and crane 16's. I doubt that could be it, but just wondering.
Also, the car has a funky idle, like as if it was stuck on cold start. On that note when I smell the exhaust gases they smell as if the car was running rich; which could mean that the O2 sensor is about to take a dump.
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Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim
#127440, "RE: engine code" In response to Reply # 6
could it possibly be a dying coolant temp sensor? that can fuck with the AF ratio as well.
might want to bust out a multimeter and check that.
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