Mechanics

I DON'T UNDERSTAND WHAT ,DTC 55 MEANS?

1993 Buick Park Avenue • 158,000 miles

UPON HEAVY ACCELERATION, CAN'T GET FULL POWER BUT SURGES VERY STRONG THEN SMELL EXHAUST, CODE 55 SHOWED BUT DON'T UNDERSTAND IT.
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Tonyfop88
March 19, 2012.



That really means nothing except that it is finished testing. The symptoms sound a lot like a bad MAF.

Wrenchtech
Mar 19, 2012.