Idle counts 145 in Vette do they have a Idle Air Motor?
07-31-2003, 10:35 PM
#1
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Idle counts 145 in Vette do they have a Idle Air Motor? Ok, a friend brought over his vette it just had a heads and cam done, little cam 212 218. It idles about 600-700revs, and the Idle Air counts are 140-150.
The weird they I don't see a Idle air motor, do vette have them or does the butterfly motor take care of this? How can I bring it down?
Thanks again.
Z
The weird they I don't see a Idle air motor, do vette have them or does the butterfly motor take care of this? How can I bring it down?
Thanks again.
Z
07-31-2003, 10:56 PM
#3
Re: Idle counts 145 in Vette do they have a Idle Air Motor? Vettes are fly-by-wire.PCM controls the blade/butterfly.
No need to bring them down to the 30 - 50 range.With that cam it should adjust itself- I would think. If not then try an "Idle Relearn".
Automatic Transmission:
1 Turn off the ignition
2 Restore the PCM battery feed
3 Turn Off the AC controls
4 Set the parking brake and block the drive wheels
5 Start the engine
6 Allow the engine coolant temperature to reach 176 degrees F
7 Shift the transmission selector into the drive range
8 Allow the engine to idle for 5 minutes
9 Turn on the AC controls (Omit for 2000-01 model)
10 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
11 Shift the transmission selector into Park
12 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
13 Turn off the AC controls (Omit for 2000-01 model)
14 Allow the engine to idle for 5 minutes
15 Turn off the engine for 15 seconds
Manual Transmission:
1 Turn Off the ignition
2 Restore the PCM battery feed
3 Turn Off the AC controls
4 Set the parking brake and block the drive wheels
5 Transmission in neutral
6 Start the engine
7 Allow the engine coolant temperature to reach 176 degrees F
8 Turn on the AC controls (Omit for 2000-01 model)
9 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
10 Turn off the AC controls (Omit for 2000-01 model)
11 Allow the engine to idle for 5 minutes
12 Turn off the engine for 15 seconds
IACs can be adjusted with LS1Edit, Engine Cal->Idle + Limiters->IAC Park Position.Can make small increases at 40*C and above.Don't scale IACs make individual changes at each temp and then see how it does as it migrates through each temp transition.If it needs more air then increase it a small amount.Idle Air (running airflow) seems to run in tandem with IAC -so you would scale this slightly,say 105% for example You really won't need these (IAC and Idle Air)changes with that cam.Hope this helps some Good Luck!
joel(Bink)
No need to bring them down to the 30 - 50 range.With that cam it should adjust itself- I would think. If not then try an "Idle Relearn".
Automatic Transmission:
1 Turn off the ignition
2 Restore the PCM battery feed
3 Turn Off the AC controls
4 Set the parking brake and block the drive wheels
5 Start the engine
6 Allow the engine coolant temperature to reach 176 degrees F
7 Shift the transmission selector into the drive range
8 Allow the engine to idle for 5 minutes
9 Turn on the AC controls (Omit for 2000-01 model)
10 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
11 Shift the transmission selector into Park
12 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
13 Turn off the AC controls (Omit for 2000-01 model)
14 Allow the engine to idle for 5 minutes
15 Turn off the engine for 15 seconds
Manual Transmission:
1 Turn Off the ignition
2 Restore the PCM battery feed
3 Turn Off the AC controls
4 Set the parking brake and block the drive wheels
5 Transmission in neutral
6 Start the engine
7 Allow the engine coolant temperature to reach 176 degrees F
8 Turn on the AC controls (Omit for 2000-01 model)
9 Allow the engine to idle for 5 minutes (Omit for 2000-01 model)
10 Turn off the AC controls (Omit for 2000-01 model)
11 Allow the engine to idle for 5 minutes
12 Turn off the engine for 15 seconds
IACs can be adjusted with LS1Edit, Engine Cal->Idle + Limiters->IAC Park Position.Can make small increases at 40*C and above.Don't scale IACs make individual changes at each temp and then see how it does as it migrates through each temp transition.If it needs more air then increase it a small amount.Idle Air (running airflow) seems to run in tandem with IAC -so you would scale this slightly,say 105% for example You really won't need these (IAC and Idle Air)changes with that cam.Hope this helps some Good Luck!
joel(Bink)
