2002 Pontiac Grand Prix Just wont run right

2002 PONTIAC GRAND PRIX
55,000 MILES • 6 CYL • 2WD • AUTOMATIC
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STEVEIP57
  • MEMBER
  • 1 POST
So the other day i ran my car really low on gass and let it sit for 3 days.... not knowing that it was -40degrees celcius and i fillled my car up with gas and it seems like it is starving for fuel... i used one of those reader things and it is saying that it is missfiring, i have tried gas line antifreeze and fuel injector cleaner but it is still not fixed., any tips?
Jan 20, 2008 at 1:22 PM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
its time for a tune up. replace spark plugs and wires. look closely at the coil, where the plug wire connects to it, some might be burnt with carbon. use wire brush to clean them and replace plugs and wires. ill bet this fixes your problem. feedback and votes for me are greatly appreciated.
Jan 20, 2008 at 1:34 PM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
if you did tune up and its not a ignition problem then you need to do an injector balance test on the injectors. unfortunately you need special tools to do it. double check under intake manifold that there are no signs of a mouse nest. they can eat the injector wire harness. its pretty obvious, they usually eat the under hood insulation and build the nest. check back with us.
Jan 21, 2008 at 8:05 AM
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