Question about 1999 Pontiac Sunfire
No power to fuel pump fuse es good relay good swtill no power
Check the wiring at the fuel pump assembly for corrosion, if the wires look ok, i would then move to the Crank and cam shaft sensors. if these sensors are not in good condition , it will cuase these actions.
if everythign checks out ok with the sensors, this will confirm a serious PCM issue.
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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