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03-12-2012
my 99 gtp will start up no problems but only runs for like 5 seconds then dies during the time its running it sounds fine, when it dies it does it without any coughing or sputtering sounds like its been shut off, if i keep my foot on the gas it will keep running but soon as I letup the slightest bit it dies like if im revving it at 3k and drop down to say 2.9k it dies... any ideas?
03-12-2012
fuel pump resistor. in the fuse panel in the engine compartment. take out the fuel pump relay and bend pin 85 out. then reinstall the relay..should run fine then
03-12-2012
so tried that half worked it runs for about twice as long before she dies same thing but now while idling the rpm drops slightly almost dieing then goes back up does this 3 or 4 times then dies...
03-12-2012
hmmm. unplug the maf. then start it
03-12-2012
had anything done to it recently?
my car did this when i left my break booster hose off
03-12-2012
have had nothing done to it recently... last thing i did was an oil change which was a month ago
03-12-2012
my car still ran when the brake booster hose was off....just sounded like it had the most radical cam in it. lol
03-12-2012
so unplugging the MAF had no affect
03-12-2012
mine would rev up to 3k then fall off completely lol
and hmm
there was a thread like this a little while back ill see if can find it
03-12-2012
i guess i should mention it smells like shes running rich... but im thinking that could just be the left over fuel from when she dies
03-12-2012
http://www.grandprixforums.net/bad-iac-tps-58637.html
here it is had the exact same prob even with smelling rich
03-12-2012
^there is some things in there you could look at next
03-12-2012
tried everything suggested there... no dice... ive unplugged bot relays 14 and 15 bent out the pins each time i did that (did them one at a time) it ran a little longer the first time before dieing then went back to dieing right away i dont see any vacuum lines unplugged i cant find any leaks as it just wont run for long enough to even try and hear if theres a leak i cleaned up my IAC had no affect unplugging the MAF has no affect she just dont want to run i tried looking underneath to see if anythings been pinched everything looks fine from what i can see kinda hard being on the ground and all... now the car was put into the ditch last week i should have mentioned that earlier i guess but it ran fine until i went to start it today im at a complete loss...
03-12-2012
did you try to pedal the car with the maf unplugged for a few seconds and see if it would idle out?
http://www.grandprixforums.net/solve...dal-52641.html
this one had the same prob didnt run with the maf unplugged, but cleaning it helped
and as far as the ditch goes i wouldnt know i guess it depends on the extent of the damage
03-12-2012
tried and nothing as far as damage goes i can't see any damage but it is hard to tell exactly as i have no way of getting under the car
03-12-2012
is ur security light blinking when the car dies?
03-12-2012
no its not
03-13-2012
hey onos, hey does ur car have problems at cold start in the mornings? is it just actin up when engine is warm? had the same prob. turned out to be a maf sensor.
03-13-2012
if ur maf had no effect when unplugging, it would make sense because ur maf is prolly dead to the point where the car is already in "safe mode" as if it was unplugged anyway. just try disconnecting maf and remove battery cables for like 15 min to clear all codes if any. then leave maf unplugged and connect battery and try to start let us know...
03-13-2012
i dont have any issues with it starting and theres no codes showing up, it just doesnt run, it was cold this morning and it started fine when i tried and just like when its warmer out runs for about 3-5 seconds then dies, i dont know how it will act with the engine warmed up as it i cant get it warmed up being that it only runs for 5 seconds at a time
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