PNWYukon
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Have been reading that many people corrected their P0171, P0300 and P0131 codes by replacing the intakes gaskets. These have TSB's even and is a know issue. Has anyone on here had to do this to correct these codes?
Intake Gaskets on 5.3l Ls
- Thread starter PNWYukon
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David Paul
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PNWYukon
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Did not need to replace intake gasket to clear up the codes.
David Paul
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So how did you correct the problem that caused the codes?
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PNWYukon
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Replaced the 02 sensor bank 1 sensor 1, cleaned MAF sensor, replaced plugs and wires and added ACDelco fuel treatment. After I was done, I cleared the codes and drove it around for awhile. It has been 8 days with no codes or bad idle...
David Paul
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Nice....plugs on mine are new, less then 1000 on them. Cleaned the MAF and used fuel treatment..cleared code P0171 and am waiting myself to see if it returns.
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