Is it normal for you car to have an incredibly low idle when you start it. I've found that if I push lightly on the gas pedal for about 20 - 30 seconds it goes back to where I set it.

The other question I have is, why is that the warmer my car gets, the higher the idle gets? I was under the impression that the idle was high in the beginning to warm the engine, but then would drop back down.



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1984 Z28 Camaro
Mods: 350 ci built by Ultimate Performance Inc, 4 bbl Quadrajet rebuilt by Holley, 700R4 Rebuilt by Level 10, Hyptertech chip Stage 2, K+N air filter, Edelbrock TES exhaust manifold, Flowmaster Muffler, 3.73 Richmond gears, Auburn Posi Limited Slip Differential, KYB Shocks and Struts, Edelbrock Panhard Bar, Trailing Arms, and Strut Tower Brace, TRW Springs, 245/50/R16 Embassy Tires(Yeah, I have no more money.)
Future Mods: Paint!

 

When I start my car cold, I idle at about 1000RPM and gradually drop to around 650RPM. I would check the TPS and IAC to see if they are adjusted correctly.

 

I had this problem too. it turned out to be a vaccuum leak between my carb and intake manifold. get the enging running, and spray some carb cleaner betwen the carb and the manifold. if it idles up then you have a vaccuum leak, and need to reseal with new gaskets.

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'86 IROC 5-speed
305 LG4
edelbrock performer rpm intake
edelbrock 600 cfm carb
msd pro billet hei
'95 3.23 rearend
hotchkis rear suspension