-Check your fuel pressure; if low suspect your fuel pump, relay, low voltage at the pump, bad fuel pressure regulator, leaky fuel injectors.
-Check compression in each cylinder; if low suspect leaky/blown head gasket, worn valve, cracked cylinder head.
-Check your ignition system (your must have a strong spark for your car to operate smoothly). If you never replace the plugs and wires, and inspected the coils, now is a good time.
If all the above is okay, you could still have problem with a sensor, or a big vacuum leak.
Have your car scanned for codes if you haven't done it already. It should tell you what the problem is.
Monday, November 17th, 2008 AT 9:28 AM