2003 Pontiac Sunfire Stalls at startup

2003 PONTIAC SUNFIRE
110,000 MILES • 4 CYL • FWD • AUTOMATIC
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BBEHARRIELL
  • MEMBER
  • 1 POST
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.
Jul 25, 2008 at 7:52 AM
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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.
Aug 11, 2008 at 12:30 PM
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MASTERTECHTIM
  • ✓Experienced 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
Aug 11, 2008 at 12:40 PM
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