Keithgtp Posted March 21, 2009 Report Share Posted March 21, 2009 Hello again I got a 1991 GTP (3.4)that runs but dies sometimes at idle but starts back up and runs. Doesnt do it all the time. It sat for 3 months til i got the powermaster 3 abs rebuilt. it runs keeps between 45-47 psi in fuel pressure and keeps it. any help on this would helpful Thanks Keith Quote Link to comment Share on other sites More sharing options...
Andrew Posted March 21, 2009 Report Share Posted March 21, 2009 sorry to go off the track, but your GTP didnt get the PM III from the factory. only the TGP's did. as for the problem, i'd clean the IAC and MAP sensors and go from there. use this ONLY. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted March 21, 2009 Report Share Posted March 21, 2009 sorry to go off the track, but your GTP didnt get the PM III from the factory. only the TGP's did. Not true, they could get the PMIII from 1989-1991 in full production on regular Grand Prixs as well, CS's could get them also. There was also a small "test" run of production 1988 GPs that had the PMIII. Back on topic, it does sound like your IAC may be gummed up, clean it well, and be sure to pull your ECM fuse for a while, then do an Idle Relearn after you're finished. Quote Link to comment Share on other sites More sharing options...
Andrew Posted March 22, 2009 Report Share Posted March 22, 2009 whoa. learned somethin new! Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted March 22, 2009 Report Share Posted March 22, 2009 Quote Link to comment Share on other sites More sharing options...
Keithgtp Posted March 22, 2009 Author Report Share Posted March 22, 2009 Thank you and this did have the power master 3 sent to SIA and had it rebuilt and they did a great job. I replaced the iac last fall but car has been down since late oct (g/f car she dont tell me anything til it dies ) didnt no u had to relearn the idle how do u do that. I like these cars but wish ours had 3.1 lol Just put a alt in my 95 last weekend. Anyways how do u relearn the idle? Thanks Quote Link to comment Share on other sites More sharing options...
Andrew Posted March 22, 2009 Report Share Posted March 22, 2009 http://www.w-body.com/forum/index.php?topic=31176.0 Quote Link to comment Share on other sites More sharing options...
Keithgtp Posted March 22, 2009 Author Report Share Posted March 22, 2009 i also forgot to add the the boot between the air cleaner and the intake (not sure what its called) has a rip at the intake. went to dealer and they cant get it could that be causing it ? Quote Link to comment Share on other sites More sharing options...
Keithgtp Posted March 22, 2009 Author Report Share Posted March 22, 2009 and also should i do this to my 1995 GTP since i had the battery disconnected to put in the alt? Quote Link to comment Share on other sites More sharing options...
rockfangd Posted March 22, 2009 Report Share Posted March 22, 2009 i would definately say idle relearn Quote Link to comment Share on other sites More sharing options...
Andrew Posted March 22, 2009 Report Share Posted March 22, 2009 i also forgot to add the the boot between the air cleaner and the intake (not sure what its called) has a rip at the intake. went to dealer and they cant get it could that be causing it ? not likely. i'd still fix it anyway though. grab one from a j/y. Quote Link to comment Share on other sites More sharing options...
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