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p0171
1-4 of 4 Results
  1. ATS General Discussion Forum
    Can someone help me out if they've came along with the same issue. I recently was doing a transision from 87 to 93 grade gasoline. I've had it in for about 2 weeks now with two full fill ups. Then just yesterday I got the code P0171, could this be from the gas change? The car isn't used to the...
  2. STS Forum - 2005-2012
    The white whale I have been chasing for a few years. My LH2 (~65k miles) has high LTFT (over 20%) on both banks during high engine vacuum, though bank 2 is higher and thus occasionally (maybe every four months) sets a P0174 after extended driving. At cruise or acceleration, LTFT are above 0% and...
  3. DTS Forum - 2006-2011
    In the next two to three weeks, I will be changing the gasket of the cam cover in the rear of the engine, and at the same time will be replacing the spark plugs, since it is a bit of a pain to take off. I am thinking of using iridium instead of platinum, as they have a higher melting point, and...
  4. ATS General Discussion Forum
    Hello, two weeks ago I had two codes P0171 and p0299 and they eventually went away. Last night I was driving on the high way when suddenly check engine light, service stabilitrak, and service traction control lights all came on. Also got an alert that said engine power reduced and speed limited...
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