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Thread: Idle after cam swap
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01-23-2009, 06:52 PM #1
- Join Date
- Dec 2008
- Location
- pa
- Posts
- 12
Silver- 2002 Z28
Idle after cam swap
Hello, I remember reading a post about drilling the hole in the throttle body bigger to help the idle, but I cannot find it. Does this help? Can anyone help?
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01-23-2009, 08:00 PM #2
- Join Date
- Dec 2008
- Location
- pa
- Posts
- 12
Silver- 2002 Z28
????
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01-23-2009, 08:06 PM #3
- Join Date
- Aug 2005
- Location
- Thornton, CO
- Posts
- 23,773
Red Tint Jewelcoat- 2008 Trailblazer SS
Have you gotten the car tuned?
What size cam?
Some will drill a hole....I don't like that idea much.2008 Trailblazer SS
Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
Lowered, HID's, tinted.
1999 Pontiac Trans Am WS.6 #1747 SOLD
531.1 RWHP 481.3 FT/Pounds all motor.
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01-24-2009, 02:48 AM #4
Need a tune & there's an adjustment idle screw on the TB. Open it a half a turn.
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01-24-2009, 04:02 PM #5
- Join Date
- Dec 2008
- Location
- pa
- Posts
- 12
Silver- 2002 Z28
First, sorry I posted in the wrong section. I have 2002 Z28 with an ls1. I have completely rebuilt the motor and installed a GM hot cam with full length headers, a ypipe, and magnaflow exhaust. It has a serious idle problem. I did the idle relearn helped a little. I have turned in the idle screw about 3 turns and I have driven it about 70 miles and it still will not idle the first time you put it in gear. I am going monday to have the pcm retuned. Thanks for the help. Any suggestions on gears(im thinking 3.73's)? Will post dyno numbers.
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01-26-2009, 05:24 AM #6
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