Having problems with your 1993 Pontiac Grand Prix ?
1993 grand prix keeps stalling when you come to a stop
When stopping, the throttle plate is completely closed, leaving the engine to need a different way to get air...that would be the IAC (idle air control) valve or otherwise known as an electronic choke on older cars. It gets dirty with carbon and after it gets hot it can get sticky...if you clean or replace it, that will solve the problem and it will also run better at idle.
Try discinnecting the ttc
Repair Help & Product Troubleshooting for 1993 Pontiac Grand Prix
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