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2003 Pontiac Sunfire Stalls at startup

Tiny
BBEHARRIELL
  • MEMBER
  • 2003 PONTIAC SUNFIRE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
Installed new ignition switch, now it starts but stalls as soon as key returns to run position. Also How do I shut down Anti-theft system so I can clear ECM codes. I don't havea code reader.
Friday, July 25th, 2008 AT 2:52 PM

2 Replies

Tiny
JOHNVOSH86
  • MEMBER
  • 4 POSTS
You may need to take your car to a GM dealership and have them hook a Tech 2 to it. It is possible that they will need to program your key to the vehicle (ie. Radio) as the vehicles nowadays have part of the computer in the radio.
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Monday, August 11th, 2008 AT 7:30 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Actually you can reprogram it yourself still. You need to have the battery fully charged then start car and leave the key on. The theft light will flash for 10 minutes then turn off, when its off shut the key off and repeat it again 2 more times then it will have learned itself. Hope this helps
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Monday, August 11th, 2008 AT 7:40 PM

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