89 iroc idle and running problems
89 iroc idle and running problems
i just bought my iroc last night and cant keep it running it feels out of time kind of missing... New cap rotor wires and plugs, put a brand new iac, and checke the pressure at the rail it was pegged at 45... Could it still be my pump cause thats about all i have left right? Besides it not running it looks sexy as hell!haha... Any thing can help guys thanks!
Joined: Dec 2004
Posts: 16,752
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 89 iroc idle and running problems
have you done a compression check and ohmed out your injectors ?
Re: 89 iroc idle and running problems
im gonna check the ohms today... How do i check the spray and if the leak? And i checked fuel pressure yesterday... What is the best upgrade for injectors?my goal is to make this car run high to mid 12s with this tpi...
Re: 89 iroc idle and running problems
fuel injectors are fine... I believe it jumped time here is why... It is hard to start it, it feels like its just got a miss when i drive it... And it wont go over like 35mph pedal to the floor? Am i wrong? So far ive changed cap, rotor, wires plugs, iac and have checked the ohms on my injectors... All read from 17 to 19... One does run 3 thow. When i say hard to start it goes... Womp....womp... womp then fires up and idles at 500 and goes up to 600 and then bounces rpms...
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Re: 89 iroc idle and running problems
fuel injectors are fine... I believe it jumped time here is why... It is hard to start it, it feels like its just got a miss when i drive it... And it wont go over like 35mph pedal to the floor? Am i wrong? So far ive changed cap, rotor, wires plugs, iac and have checked the ohms on my injectors... All read from 17 to 19... One does run 3 thow. When i say hard to start it goes... Womp....womp... womp then fires up and idles at 500 and goes up to 600 and then bounces rpms...
Re: 89 iroc idle and running problems
fuel injectors are fine... I believe it jumped time here is why... It is hard to start it, it feels like its just got a miss when i drive it... And it wont go over like 35mph pedal to the floor? Am i wrong? So far ive changed cap, rotor, wires plugs, iac and have checked the ohms on my injectors... All read from 17 to 19... One does run 3 thow. When i say hard to start it goes... Womp....womp... womp then fires up and idles at 500 and goes up to 600 and then bounces rpms...
Re: 89 iroc idle and running problems
actually 19 ohm is a little on the high side. May have some issues with the coil. When you ohmed the injectors did you do it when they were cold and hot?
Joined: Jul 2004
Posts: 769
Likes: 51
From: Zebulon, nc
Car: 1990 GTA/1989 Iroc
Engine: L98/383
Transmission: 700r4/t56 magnum
Axle/Gears: 9"
Re: 89 iroc idle and running problems
Check timing. Is it a MAF sensor car or MAP sensor? Check engine light on? Doubt it jumped timing.
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