Weird Problem
06-21-2004, 10:14 PM
#11
Senior Member
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Originally Posted by rfreeman27' date='Jun 21 2004, 11:11 PM
Found the problem. There is sopposed to be a filter in the line to the map sensor. I had a check valve...but i think i have pictures of it being like that before the motor was pulled...when the car was running. Who knows, but its fixed. Now the idle is going 1000, 2000 up down up down non stop
but the car runs
and i took it down the street
woot
but the car runs
and i took it down the street
woot
They look a lot alike.
Sounds like you still have a big vacuum leak?
06-21-2004, 11:29 PM
#12
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Join Date: Jun 2002
Location: La Plata, Maryland
Posts: 9,725
Originally Posted by rfreeman27' date='Jun 21 2004, 07:11 PM
Found the problem. There is sopposed to be a filter in the line to the map sensor. I had a check valve...but i think i have pictures of it being like that before the motor was pulled...when the car was running. Who knows, but its fixed. Now the idle is going 1000, 2000 up down up down non stop
but the car runs
and i took it down the street
woot
but the car runs
and i took it down the street
woot
06-22-2004, 12:46 AM
#13
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Thread Starter
Join Date: Dec 2002
Location: fredneck MD
Posts: 4,107
Originally Posted by Fd3BOOST' date='Jun 22 2004, 12:29 AM
That sounds like part of my problem as well.I just now realise that I did not put the check valve back in the line. I am using the GM 3 bar, are you using the same and what filter did you use? Why cant you use the stock moget?
And tyson, that is what i thought...
But i cannot find any vaccume leak. I checked every gasket..every block off plate
i tried the carb cleaner trick arond all of it (raised the idle to 2200 where it stayed solid to try this) and couldnt get the idle to raise at all...
06-22-2004, 10:59 AM
#16
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Join Date: Jun 2002
Location: La Plata, Maryland
Posts: 9,725
Originally Posted by 93 R1' date='Jun 22 2004, 05:34 AM
It revs up and down because the PFC is learning the sensors and ****. It will do that for a while.
06-22-2004, 11:43 AM
#17
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Join Date: Jan 2003
Location: Chicago, IL
Posts: 39
IT should only do it the first time the car starts up, and it generally takes like 10 min with no lights on, 10 min with the rear defroster on, and 10 min with the a/c on ( IF that) for it to learn the idle adjustments
06-22-2004, 11:45 AM
#18
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Join Date: Dec 2001
Location: Panama City Beach, Florida
Posts: 993
i've never had my idle hunt when i installed a powerFC. Usually was a small vacuum leak or a bad ground.
Make sure to double check everything. After your idle smoothes, you can adjust the idle with the PFC or the idle set screw.
Make sure to double check everything. After your idle smoothes, you can adjust the idle with the PFC or the idle set screw.
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