Question about 1994 Chevrolet Lumina APV

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Does not accelerate

When driving my van, sometimes I can feel it becoming sluggish, and it does not accelerate when I step on the gas. Then the "Service Engine Soon" light comes on. Then the van starts to limp for a while, and then sometimes, it acts normal for a bit, while the "Service Engine Light" is on. I took it to the mechanic when the light was on, they put on the scanner and the following codes appeared: 670 QDM 4 failure 650 QDM 2 failure 640 QDM 1 failure Please tell me : 1) if I need to have a part replaced 2) how much would the part cost 3) how long does it take to install the part 4) should I have a dealership fix it; or a mechanic at a small shop. qdm 1 & qdm 4 failure

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Newer cars are controled by the computer, only dealer can adjust it, usually the small garage can not handle the computer setting.

Posted on Jul 26, 2008


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