 Too much air through AAR, valve? |
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| mtndawg |
 Jan 18 2010, 11:01 AM
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Member  Group: Members Posts: 414 Joined: 26-January 09 From: Granite Bay, Ca Member No.: 9,985 Region Association: None 
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I've been looking for info on the AAR and most of the discussions have been about the AAR being stuck closed. I'm wondering if mine is letting too much air through at start up? I've got my 1.7L d-jet pretty close to where I want it. When it's warm I'm idling around 900ish. Vacuum lines are new and fuel pressure is perfect.
When the engine is cold and I start it up, it jumps to 2000 to 2300 rpm. When I take the hose off the AAR it's sucking a LOT of air. Restricting it with my thumb of course drops the idle. After about 3 minutes the valve is closing and the idle drops on it's own. There's also a little white smoke at start up. What do the experts think? |
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| underthetire |
Jan 18 2010, 11:14 AM
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Your close enough! It depends on where the mixture knob is at on the ECU, and how far your air bleed screw is at on the TB, and timing. If it's running good, leave it alone.. Your fast idle speed is fine.
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Posts in this topic
mtndawg Too much air through AAR Jan 18 2010, 11:01 AM
ConeDodger I am no expert but it sounds like it is doing what... Jan 18 2010, 11:04 AM mtndawg Shouldn't it start to idle around 1500 to 1800... Jan 18 2010, 11:09 AM
ConeDodger
Shouldn't it start to idle around 1500 to 180... Jan 18 2010, 11:15 AM SLITS that's a bit high on the cold idle, but nothin... Jan 18 2010, 11:47 AM pbanders I've been doing a lot of research into the AAR... Jan 18 2010, 12:26 PM tod914 You could experiment with a plug in the airline wi... Jan 18 2010, 04:46 PM |
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