WHY DO PONTIAC 2008 DISABLE THROTTE CONTROL SENSOR ERROR
consider replacing the starter relay....they are cheap~ http://www.rockauto.com/catalog/x,carcode,1440276,parttype,3804
you know once the key is turned...it takes a moment.........for the fuel rail to pressurize and the injectors to start working....right now am working on a theory that your battery is gettin' older and no longer takin' a charge...also with reduced voltage...and that the ground connection (black heavy 1/0 battery cable connection to the chassis/ frame is full of corrosion from repeated 300 or more amps in fact creating a "semi-conductor" layer providing REDUCED voltages for things like the fuel injectors, fuel pump...ignition system to have to deal with reduced voltages...2008...yeah it's about ripe for a new one....before the alternator starts belly-achin'~
Yes....use a coarse wirebrush...this will cost NOTHING but your problems WILL vanish if you can assure the system ground is a SOLID 12 volts...doesn't waver and supplies steady AMPERAGE~ this needs to be done~
i think it is a a cam or crankshaft sencer going bad
Brockr..... My 2008 GP is doing the same thing. Did you find out which part needs replaced?
Looking for a Used Grand Prix in your area?
CarGurus has 1,795 nationwide Grand Prix listings starting at $2,500.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts