LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Help?

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Old Feb 2, 2011 | 11:29 PM
  #1  
Littlez28's Avatar
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From: Atl
Help?

So here is the deal.
After I put everything on the car would always cut off if I pushed the clutch in above 2k rpm. I learned (after awhile) that if I brought the car under 2k rpm and put the clutch it wouldn't cut off but would fall to 500 rpm until it idled out.
Well I had my long tubes off for awhile. I just put them back on and now the car will cut off every time I push the clutch in no matter how low the rpms are.
Was wondering if this is vacuum loss cause it's worse when I push the brake also. It's annoying and I need it fixed. Any suggestions to what the problem may be?
Any help is appreciated.

Thank you.
Old Feb 3, 2011 | 05:19 AM
  #2  
Injuneer's Avatar
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Re: Help?

It may be that the IAC isn't opening up as the RPM increases. It opens up to provide the minimum air flow to prevent the engine from stalling when the throttle blades close. Make sure the IAC motor is hooked up and working.

Courtesy of Shoebox:

http://shbox.com/1/iac2.jpg
Old Feb 7, 2011 | 08:51 PM
  #3  
Littlez28's Avatar
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Re: Help?

I checked it and it looks fine. Would it act the same way if one of my cylinders were not firing?




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