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Old Aug 26, 2002 | 11:19 AM
  #1  
Mr. Bill's Avatar
Mr. Bill
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From: austin tx us
Default P0171H and P0174H

2 pcm error codes. checked service manual and it reads that I had a lean condition for more than 6 seconds. I have a 2002 Z06. Has anyone else
had problems with this code.
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Old Aug 26, 2002 | 05:50 PM
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esch's Avatar
esch
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From: Superior CO
Default Re: P0171H and P0174H (Mr. Bill)

yeah, I just fixed this on Friday. In my case I had put in bigger injectors. We were getting the same codes. To fix, we simply used ls1edit and specified a slightly smaller injector size, that way the PCM calculation left the injectors open a bit longer and "magic" no more codes.....

Hope that helps..... Good Luck
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