Question about Pontiac Grand Am
I have a 1993 Pontiac Grand am SE with a 2.3 L 4 cyl engine. I just bought it a week ago. The first three days drove great. The first time this happened my radio shut off. then my service engine light came on. about 3 miles down the road I stopped at a stop light went to turn then my car just stalled. Shut my car off then started it right back up. Perfectly fine. Battery and alternator are ok. and no one has an OBD1 scan tool around us only OBD2. So we cant read the codes. Anyone help would be great
How long since a tune-up? To check for some codes, use a jumper wire between A and B terminals at datalink connector. Then, turn key just till dash lights come on. The mil starts flashing, you count the flashes to get the codes, your looking for two digit numbers. This is 12 pin data link connector obd1.
Posted on May 23, 2017
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Posted on Jan 02, 2017
SOURCE: obd1 scan tool will notaccess
A couple of ways to check and see if the computer is ok first:
check engine light must come onwith they in on position
The fuel pump must run for two (2) seconds with the key ON
There must be a 5 volt reference at sensors like map, TPS
Must communicate with scan tool
The ORANGE wires at the computer are you power input wires one has 12V all the time this is your KEEP ALIVE MEMORY
one is 12 with the Key on you MUAT HAVE VOLTAGE AT BOTH
Check the computers Ground most are out under the hood and are brown wires
Try the GM TAP TEST this is a factory authorized test with the computer connected and you verified all of the above SLAP the computer with the open hand firmly not too hard but firm see if anything changes,
Do not disconnect the battery you will erase all the codes!
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Posted on Aug 14, 2008
It could be a number of things. Fuel Flow problem, or electrical apparatus heats up and works inefficiently. You could start from the cheaper, less strainous solutions, in this order: Change Fuel Filter, and clean Nozzles. Fuel Pump, Air Mass Meter.
Posted on Mar 29, 2009
have the car checked when the check engine light is on,also a good scanner will be able to give you the history codes,get back to me with the codes and we'll go from there. you need someone with a professional scan tool
Posted on May 13, 2009
SOURCE: 1993 Chevy lunimina Broke down
I don't want to seem like a smart ****, but the blown fuses were telling you that something with the component that it was protecting is going bad. So changing the fuse the first time was a go idea, the second time was not. It told you, that something was failing and you refused to pay attention.
But at least you know which fuse blew, so now all you have to do is find out what it was protecting and replace it or what feeds it.
Posted on Aug 28, 2011
MY 2002 RAINIER DOES THE SAME THING I HAVE BEEN TOLD IT IS THE THROTTLE BODY. I NEED TO CLEAN IT OR REPLACE IT. I HAVE THE 4.2 AND YOU CAN GET ONE FOR $200 PLUS SHIPPING. THE THROTTLE BODY STARVES THE CAR FOR AIR CAUSING THE IDLE, AND SHUT DOWN PROBLEMS. I AM GOING TO TRY IT THIS WEEKEND.
Posted on Oct 04, 2012
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