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Power FC idle problem after removing ACV, etc.

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Old Apr 21, 2006 | 07:24 AM
  #1  
rotorypolo's Avatar
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73 13B 4 port
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From: atlanta
idle problem after removing ACV, etc.

I have done the airpump removal, ACV delete under the UIM etc etc, and I have my PFC 02 setting off. The car runs good, however, whenever I start my car stone cold, I have to crank the car about 2-3 times before it will idle, and once it idles, I have to hold the rpm to about 2500 to prevent it from stalling for about 10-15s. This is all fine by me, but I am wondering if this is the only remedy to this problem? I have 1600cc secondary and a FPR, FP is about 40 psi. I wonder if the PFC air/water temp correction and cranking injector value has anything to do with my problem, advise needed.
Thanks
Marco
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Old Apr 21, 2006 | 07:44 AM
  #2  
dubulup's Avatar
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From: Lafayette, LA
yes you'll need to tune it a little...the ACV plumbs air in the the LIM at certain times. You are most likey running too rich at those times, especially when cold.
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Old Apr 21, 2006 | 06:45 PM
  #3  
cewrx7r1's Avatar
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From: In A Disfunctional World
I suggest you read page 31 of the manual on WATER TEMPERATURE CORRECTION.

My approach to tunning is to always get the idle correct first(totally warmed up), then with a a cold engine adjust the above table so that the adjustment is in the middle of lean and rich for the 50C to 10C levels for low loads. Then add 5% to them to get the high load values.

So go tune for best idle, and temporarily add more fuel to the above table, and get at it.
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