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1990 Iroc - starts, then instantly stalls Posted By: vital49 On: 03-26-2008 @ 07:58:14 Reply | Edit I'm helping my father-in-law diagnose an issue with his car. It's a 1990 Iroc Camaro with the 305. Manual trans. Here's the issue - you start the car, it'll run for about 2 - 5 seconds, then stall. You restart it, it runs for 2 - 5 seconds, then stall. It'll go through this routine 8 - 12 times before it will actually stay running so you can drive it. It's not starved for gas. Electirically it seems to be being shut down. Anyone have any tips or tricks to try? My initial thought is a faulty sensor on the throttle body. There is no check engine light, by the way. -- 79 Trans Am Firebird 301 99 Trans Am Firehawk #496/719 Posted By: Pocket On: 03-26-2008 @ 12:33:31 Reply | Top | Edit Check: TPS IAC coil Dist module -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: LeadFootedRacer 
On:
03-26-2008 @ 16:08:20 Reply | Top | Edit
doubting coil, if it regulars over time. -- 
--Fbody.Com Site Donator-- Posted By: TransAmracer383 On: 04-06-2008 @ 12:39:14 Reply | Top | Edit You can try changing the fuel sending unit...even though u said its not starving for gas try that or maybe the pumps starting to get weak. Posted By: Calaban007
On:
04-06-2008 @ 13:36:43 Reply | Top | Edit
My 86 Camaro would idle and hold good fuel pressure, but when you gave it gas it would immediately drop to 17 psi and miss. So it may prime and start but not hold pressure after it's started. Good Luck --  1995 Camaro Z28 & 1989 IROC-Z Stock restoration in progress, well almost stock  http://www.myspace.com/163296073 Posted By: Pocket On: 04-06-2008 @ 13:42:22 Reply | Top | Edit Check parts before you replace parts That method gets expensive very quickly and often doesnt solve the issue -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: vital49 On: 04-08-2008 @ 10:05:34 Reply | Top | Edit I'd rather not just start replacing parts. That seems senseless unless we know for sure what's causing the issue. Since there's no code thrown, the suggestion of checking the fuel pressure regulator is a good one. This could be a fueling issue. Fueling issues typically don't throw a code. What is the expected fuel pressure for this car? And, should it hold that pressure all through the RPM band? -- 79 Trans Am Firebird 301 99 Trans Am Firehawk #496/719
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