1995 yukon 5.7L tbi

1995 ALL OTHER MAKES ALL OTHER MODELS
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CASPERL
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my truck runs fine for about 2 min. then starts loosing power and starts coughing threw the tbi.
also i checked the computer codes and it gave me codes 35 & 54
May 18, 2006 at 3:21 PM
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LOSONE
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The 94 and 95 codes are very hard to read without a scanner.They are called Simtec codes. Putting a jumper between the connector and counting flashes

My listing doesn't list a code 35 but it does list a 54 which is a fuel pump relay malfunction.

Normally a "spit back" through the throttle body means a lean condition

Please recheck the codes and get back to me
May 18, 2006 at 4:50 PM