Drill the throttle body or Adjust the Screw??

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Aug 28, 2004 | 01:38 PM

2000Z28M6

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From: C.C., TX

Drill the throttle body or Adjust the Screw??

Seems I have not yet found which one is better. I read there are some problems with the car surging after you adjust the screw on the TPIS and I've heard people saying not to drill your throttle body cuz it will cause problems when you tune. So is there no fix besides just getting it properly tuned. Since my cam swap A/C wont let the car idle, it wants to idel but then it dies. No A/C, idles ok never dies unless its cold. All I want is to raise the idle for now. I need A/C !! A tune will come when the headers go in this fall. Also my car smells a lil rich or is it just the effects of running a 112LSA? Any temporary fix on the idle guys?

Aug 28, 2004 | 02:13 PM

Another_User

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Use the set screw. You only get surging if you go to far. If you get surging, back it off a little. I posted the procedure on here, including how to do the TPS reset so the car doesn't think your throttle is always partially open.

Aug 28, 2004 | 05:33 PM

2000Z28M6

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Ok I tried the screw method and the car idles ok with A/C now, but now when I got on it it felt like it never reached WOT. I dunno exactly what I felt but the car just didnt have power like it did before I messed with the screw. Maybe the car was just hot. Cuz it took me like 30-45 min till i finally got the screw where it idled rite with the A/C on.

Aug 28, 2004 | 05:50 PM

2000Z28M6

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Ok heres what I'm thinkin with the throttle body slightly open now it never reaches WOT, could I have gone to far? If i did i guess i can live with it till get the tune. Cuz now I have A/C..

Aug 28, 2004 | 05:53 PM

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Did you reset the TPS?

Aug 28, 2004 | 06:02 PM

2000Z28M6

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From: C.C., TX

Yea I shut her down unplugged it turned the key for a min. turn the key off replugged back in started her back up. Has anyone had any problems with WOT ?

Aug 28, 2004 | 06:35 PM

Another_User

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Quote:

Originally Posted by 2000Z28M6

Yea I shut her down unplugged it turned the key for a min. turn the key off replugged back in started her back up. Has anyone had any problems with WOT ?

Reset your PCM and try it again. You are probably going to have problems until you get it tuned. I am surprised your check engine light is not on yet because of detected misfires from the camshaft. I have never seen any problems at WOT, nor have I heard of any.