85_HO_GT

i have a 90 gt, it will start but not hold idle unless i hold the throttle. ive been told it may be the ignition module. what do you guys think?

PRO50SC

It could be alot of things. Have you done anything recently to the car and then this started?

samseed101

Could be any number of things, but I'd start with the simple stuff. Try cleaning the IAC and TB. Also check for vacuum leaks and check fuel pressure.

samseed101

Jesus you're fast. Stop beating me to the post! LoL

PRO50SC

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65bluestang

sounds emissions related. check the pressure lines.

kev2369

You can check your bolt that adjusts your idle, could be backed out... you can take an 8mm socket and give her a little tightening if it has backed off... but i would check for vacuum leaks first... Not gonna be you ignition module more than likely... they usually wanna lay down on ya after they warm up... good luck

85_HO_GT

thanks guys, as far as i know its stock. just got it. only paid 900 for it. ill checkout all your ideas and let you know.

Blue Oval

i have that same problem, i have to warm it up for a few minutes then it idles fine. dont know what it is

91stang

mine was doing the same... what i did was reset the idle and then cleaned out the IAC