Idle problem
08-28-2004, 07:21 PM
#1
Drifting
Thread Starter
Idle problem
I have a 2000 with a Magnuson NI/C after it has run for awhile it will not return to the base idle when it comes down like at a stop light/sign, it will remain around 1200/1300 and you have to use the brake to get it back to normal 900RPM. You can take your foot off the gas and it will cruise along at 1400/1500 like the throttle is hanging which we all know can't happen. I was wondering if anyone else has had or is having this problem and no there is no vacum leak.
09-02-2004, 10:04 PM
#5
Racer
Member Since: Sep 2003
Location: LaPLATA Md
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I have the same set up on my 01 a4.Basically the same problem.I took it to ECS and had them drop the idle to 750 instead of 850-900 because the car was always wanting to take off and was a real pain to drive in any stop and go traffic.Take it back to your tuner or reprogram the idle. 
09-06-2004, 10:51 PM
#7
Instructor
Member Since: Sep 2003
Location: Scottsdale Arizona
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Sounds like your RAF's (running air flow) are too high. Is this condition any different with the A/C=on or =off? The throttle cracker should return the rpm to the asked for idle when the speedo hits 0 mph. Sounds like that is happening when you hold the brake to achieve 0 mph. However if the RAF table is set too high (for your set up) then this can cause an "auto pilot" effect. This "auto pilot" condition may worsen with the A/C=on.
Some thoughts that may help with your discussion with your tuner.
Some thoughts that may help with your discussion with your tuner.
Last edited by goodhands; 09-07-2004 at 03:39 PM.
