1991 Pontiac Grand Am Crossed battery cables.

BLUEBOMB

MEMBER
1991 PONTIAC GRAND AM
4 CYL
2WD
AUTOMATIC
189,264 MILES

While changing battery cables from side post to top post cables were crossed. Positive was connected to negetive and negetive was connected to positive. All fusable links and battery cables have been replaced, The battery is fine. The computer and battery were unhooked at the same time for the same ammount of time in hopes of resetting the computer. Car does try to turn over. The ECM fuse blew but was replaced. The car is getting gas but there is no fire in the spark plug hole. Need Help PLEASE.

Sunday, June 28th, 2009 AT 10:10 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, cam and crank sensors- Note: If it doesn't apply disregard it

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Sunday, June 28th, 2009 AT 11:01 PM