If your van needs a tune up would your check engine light go on?
Jan 1, 2009 at 10:07 AM
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DAVE H
CAR REPAIR CONTRIBUTOR
13,384 POSTS
the CEL comes on when the PCM detects a fault in the system .. ie. misfire/fuel lean/rich ... it does not tell you that your engine needs a tune up .. although in some cases a tune up can cure the fault detected ...
Jan 1, 2009 at 1:52 PM
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