uneven idle
04-05-2005, 12:42 AM
#1
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Location: Chatsworth Ca.
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Car: 1986 Iroc
Engine: 355, aluminum heads
Transmission: Built 700r4
Axle/Gears: 3.42s
uneven idle
I've been trying every bit of information I can find to stabilize the idle on my '86 305 Iroc tpi. When it first starts (cold) it idles almost what seems right but give it a rev and it idles much higher. Then when I shut it off and then restart it anytime its warm, the idle goes up to about 1700-1800 rpms. I have replaced the Iac motor, cleaned the passages, set tps voltage (.54) checked for vacuum leaks, checked for codes,(getting a code 32 EGR). Testing indicates EGR and solenoid to be OK. I am at a complete loss for a solution. Anybody have a similar problem/fix for this?????
Help.
Help.
04-06-2005, 02:26 PM
#2
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Location: Littleton, CO USA
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I'm not TPI expert, but I'd guess from your description that the EGR is not operating consistently.
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