Re: NEED HELP!! 95 Grand Prix SE 3.1L

You could try the EZ link from Auto X-Ray. I got mine from Autobarn.com fro $350.00 It has the old GM cable, the intermediate, and the OBD2 generic cable. It has capture function, for intermittant faults. You drive around with your friend holding the scanner in capture mode, and when the engine dies, he hits the capture button and it stores the sensor readings just before and after it died. It has nowhere near the functions of the REAL $3000.00 scan tool though

GW

Supreme wrote:

Hi, > > I have been having alot of trouble with my car this past couple months. > > My car stalls and at times does'nt start. When it doesn't start, it cranks > but doesnt catch, just dies). When running and its about to die, it feels > like it just shifted gears, then engine lights come on, then it stalls. I > pull over, try to get it started agian, if i give it enough gas, it starts, > but if i let go of gas, it will stall, meanwhile the check engine lights and > all are on. I start driving, and after a while of driving the lights turn > off and its back to normal. > > I've had it checked by 3 different mechanics, and we have replaced alot of > parts they think it is. (list below). As it stands now, my mechanic has > given up. He thinks its electrical. It is hard for the mechanics scanning > it, because for the most part its not acting up for them. but they are able > to pull off code 34 (MAP SENSOR). > > I have a feeling its more then that, or more codes need to be read. I really > need a scanner while im driving, as my car is worse then ever now. > > Many dollars later i now know its not the following > > fuel pump (put a new one in) > map sensor (tried replacing with new one) > ecm (replaced) > crank sensor (changed it) > fuel filter (new one > ignition module (tried 3 different ignition modules) > pcv valve (put a new one in) > have put fuel injector cleaner through > > Any help would be appreciated. I am also looking for a scanner for my car. > anyone know what scanner i should get? im guessing i need a odb I scanner > for my 95 grand prix 3.1L but i've read that some 94's and 95's could be odb > II. > > I have tried jumping the aldl connector with a wire, but it doesnt flash the > codes on the dash, which tells me i need a scanner. > > Thanks in advance
Reply to
Geoff Welsh
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Check the shaft on the throttle body for excessive play. If the bushings or shaft have excessive wear, it knocks the TPS out of cal. and will cause most (or all) of the symptoms you mentioned. It may seem like a wild guess but it happens.

****************************************** I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it. ~ Thomas Jefferson ~
Reply to
Rich B

EGR Valve stuck open. When you finally get it hot, it unsticks and operates semi-normally. Pull off the EGR valve, plug the hole, and see if it starts with no problem. the EGR valve is often overlooked because it seldom goes bad. IT will not show up on the scanners either.

John

Reply to
eightupman

I'v been through the same thing with a '94 Bonneville. It turned out to be the crank sensor. It's my understanding that the Mass Air Flow sensor and the camshaft sensor can also cause stalling. Good luck. I fixed mine for $24 myself, after spending $395 at a shop.

Gary

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Reply to
GARY

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