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Originally Posted by extanker
fix first code first 0306 its a hard code. clear the code and road test and check for codes. the pending maybe history codes
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i cleared the codes and let the car warm up before driving. After a 20 minute/ 22 mile drive, the 0306 code did not reappear, so I am assuming this was an isolated incident and was the cause of the flashing CEL.
but i did get PENDING codes 1123 1125 1128 1130. no CEL, but four codes showing both rich & lean issues. i'm stumped (as usual). Is it a risk to drive with these codes ? Or was it just the 0306 that was risky?
Also, I'm wondering if the cause might be A) 87 octane gas ? B) the car takes forever to warm up because of bad thermostat?
sg