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EFILIVE help v.retarded high idle

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Old Aug 23, 2008 | 02:13 PM
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From: Pflugerville
Default EFILIVE help v.retarded high idle

i have no idea whats goin on here, its idleing at like 2400 and wont go down. IAC steps are at 0 at idle. The car has a 224 cam, headers/ypipe/catback, ls6 intake, slp lid/kn filter. Ive replaced the IAC already and no change.
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Log_0004.efi (9.2 KB, 123 views)
File Type: tun
modifiedtune.99ta.tun (471.6 KB, 63 views)
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Old Aug 23, 2008 | 04:02 PM
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Intake leak of some sort, the PCM is commanding zero airflow (0 IAC counts), yet the motor is still running at 2400 RPM.

Intake gaskets, or PCV system are the usual suspects.
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Old Aug 23, 2008 | 06:10 PM
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Originally Posted by Eurospec2
Intake leak of some sort, the PCM is commanding zero airflow (0 IAC counts), yet the motor is still running at 2400 RPM.

Intake gaskets, or PCV system are the usual suspects.

i found what it was, a wire came out of the pcm on RED 79
LT BLU/WHT
1747
IAC coil A high control

so thats why it wouldnt idle, seems to be ok now excpet for some bucking and the fact im at 35-41 spark
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Old Aug 23, 2008 | 07:03 PM
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I am glad you found it.

Bill
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Old Aug 23, 2008 | 10:15 PM
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now i just need to figure out why theres so much timming
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