1996 Pontiac Grand Am



October, 30, 2012 AT 6:51 PM

I have a 1996 grand am 3.1. When you start it up it will idle just fine for a minute or two then it will idle up high and then idle really low and spit and sputter. To keep it from dying you have to keep your foor on the pedal. After you take off it will work itself out and will not act like that anymore, however if you shut it off for more than an hour it will do it again when you start it back up. I have replaced the map sensor, and the throttle control sensoe. I had it put back on the computer and it says the oxygen sensor had no activity even though its new as well. I got a good deal on the car and it runs really good after you get it going so I would love to know where to start.

1 Answer



October, 30, 2012 AT 7:12 PM

Clean the throttle plate with choke cleaner on both sides first as well as the iac hole. Which O2 sensor has no activity you may have replaced the wrong one and is it due to a bad connection?

Please login or register to post a reply.

Vacuum Leak Test and Repair - All Cars
 Step by Step video GMC Yukon XL 2000-2006
Code Read Retrieval/Clear Chevrolet Camaro
Code Read Retrieval/Clear Scion XD
Code Read Retrieval/Clear Mercedes-Benz C230