2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

3K RPM idle...sometimes....

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Old Jul 27, 2005 | 02:56 AM
  #1  
bcool's Avatar
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Rest In Peace Dave
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From: Idaho
3K RPM idle...sometimes....

alright, turbo n/a done i'm still waiting on my EMS firmware problem to be fixed so i am still on the n/a ecu. Just for reassurance i knocked the timing back 5-7 degrees from base for boost purposes.

Alright so this is the weird thing, really rough/irratic idle down below i've checked everything through and i'm pretty sure i have no vaccume leaks since everything is blocked off and i rechecked everything. It'll sometimes idle at 1500 then down to 900 rarely. the weird thing is when i let off the throttle above 3K it'll stay at 3K, the SAFC is showing 0% throttle opening so i can be pretty well assured nothing is binding up with the linkage, only unitill i stick it in gear and drag the engine rpm down past 3000 will it return to its old irratic idle. Just some weird issues i want to get out of the way before i start tuneing.
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Old Jul 27, 2005 | 03:01 AM
  #2  
bcool's Avatar
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Rest In Peace Dave
Tenured Member 15 Years
 
Joined: Feb 2004
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From: Idaho
Come to think of it, after i put my motor back in i didnt ground it anywhere besides the starter This may have some effect shouldnt it? BTW I have nothing emissions related on the car, no BAC..nothing pretty much.
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Old Jul 27, 2005 | 06:41 AM
  #3  
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From: n
How did you plug up all the holes after removing all that emission stuff?
Block off plates?
One could be leaking...


-Ted
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Old Jul 27, 2005 | 09:17 AM
  #4  
bcool's Avatar
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Rest In Peace Dave
Tenured Member 15 Years
 
Joined: Feb 2004
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From: Idaho
i Jb welded the ports off on the back of the intake, I have a block off plate on the ACV spot and the BAC spot, so i'll try playing around with Carb cleaner today.
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