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> Quick AAR question
Gradskater
post Nov 11 2006, 10:55 PM
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Search didnt come up with my answer.

My AAR is acting up (not opening and closing reliably). If I disconnect it, I believe idle speed should stay constant. Right? I would need to plug the hole leading into the intake im guessing.

Is there anything else that would change idle speed transiently like the AAR does?

thanks for any help
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type47
post Nov 12 2006, 06:17 AM
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i think the AAR bumps up the idle for an engine that is cold. the AAR should then, eventually ~couple of minutes, close when the AAR has been warmed by either it's internal heater coil or ambient engine heat. my guess is the other engine sensors tell the brain about how much fuel to inject. idle speed controlled by screw on throttle body, idle mixture adjusted by click knob on top of the brain. (assuming D-jet)
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Gradskater   Quick AAR question   Nov 11 2006, 10:55 PM
type47   i think the AAR bumps up the idle for an engine th...   Nov 12 2006, 06:17 AM
Bleyseng   The AAR justs opens additional air to the cold eng...   Nov 12 2006, 10:05 AM
Bruce Allert  
 

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