 Knob on ecu |
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| stateofidleness |
 Aug 29 2010, 09:22 PM
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Senior Member  Group: Members Posts: 810 Joined: 1-September 07 From: Canyon Lake, Texas! Member No.: 8,065 Region Association: None  |
The knob on the ECU, I thought, is used to adjust the mixture of fuel/air?
I have it all the way clockwise, but changing it appears to not give any noticeable difference in the way the engine runs. Trying to chase a bad cold idle and trying to eliminate that as a possibility. Can someone educate me in the proper usage of that knob and what effect rotating clockwise/counter-clockwise will have? Thanks |
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| TheCabinetmaker |
Aug 30 2010, 08:53 AM
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Yep! The throttle position sensor must be properly set before the idle mixture screw wil make any difference. ECU knob will not make any difference in the way it runs, but a maladjust on the TPS will! Your crappy cold idle is more likely to be the head temp sensor.
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Posts in this topic
stateofidleness Knob on ecu Aug 29 2010, 09:22 PM
championgt1 It is not fuel/air mixture. It is rich/lean fuel. ... Aug 29 2010, 09:38 PM Lennies914 :agree: It is strickly for the idle circuit as I ... Aug 29 2010, 09:50 PM SLITS Clockwise richer, counterclockwise leaner.
Start ... Aug 29 2010, 10:05 PM tod914 If it's not making much difference when you ad... Aug 30 2010, 06:57 AM gasman Your TPS must be set correctly for your adjustment... Aug 30 2010, 08:49 AM
stateofidleness actually, after removing the air cleaner assembly ... Aug 30 2010, 09:02 AM underthetire
actually, after removing the air cleaner assembly... Aug 30 2010, 09:19 AM vsg914
actually, after removing the air cleaner assembl... Aug 30 2010, 11:02 AM |
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