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MAP unplugged car runs better

2K views 3 replies 3 participants last post by  turismolover22 
#1 ·
Has anybody ran into this, trying to diag a p0171, lean idle and wot. Unplug the Map sensor and it idles good and wot has good AFR. Has an OMNI 4 bar. I switch to another OMNI 4 Bar and same thing.
 
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