 Idle hunting, Where do I start? |
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| steuspeed |
 Mar 16 2021, 07:24 PM
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#1
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Senior Member  Group: Members Posts: 1,010 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest  |
I'm working on fixing my idle search. All new vacuum lines, plugs and wires. Car starts and runs smooth for about 1-2minutes, then the idle dumps and starts hunting up and down. My ECU knob was turned full clockwise by the PO. I turned it back to the factory setting.
Stock 2.0L 1973 car with Pertronix. Where should I look next? |
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| 914werke |
Mar 17 2021, 06:09 PM
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#2
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"I got blisters on me fingers" Group: Members Posts: 11,293 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest 
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(IMG:style_emoticons/default/agree.gif) hunting idle is usually a symptom of lean AFR
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| steuspeed |
Mar 18 2021, 12:09 AM
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#3
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Senior Member Group: Members Posts: 1,010 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest |
QUOTE(914werke @ Mar 17 2021, 05:09 PM)  What should the start idle be set at? |
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Posts in this topic
steuspeed Idle hunting Mar 16 2021, 07:24 PM
Bleyseng Do you have the resistor installed? Mar 16 2021, 11:36 PM
steuspeed I see a white wire/connector/black wire to cylinde... Mar 17 2021, 04:59 PM rjames Are you sure no vacuum leaks?
Does changing the po... Mar 17 2021, 01:14 AM steuspeed
Are you sure no vacuum leaks?
Does changing the p... Mar 17 2021, 05:17 PM wonkipop not sure i can help as have a 1.8 L jet.
but have ... Mar 17 2021, 01:24 AM BeatNavy I think you're running lean. You need to trou... Mar 17 2021, 05:50 PM steuspeed
I think you're running lean. You need to tro... Mar 18 2021, 03:36 PM mgphoto Most times it’s the idle screw on the throttle b... Mar 17 2021, 09:44 PM steuspeed
Most times it’s the idle screw on the throttle ... Mar 18 2021, 12:10 AM cary Concur with Rob & Rich, too lean. Mar 17 2021, 11:01 PM BeatNavy I wouldn't worry too much about the idle bypas... Mar 18 2021, 05:18 AM steuspeed
I wouldn't worry too much about the idle bypa... Mar 18 2021, 03:38 PM saigon71 Agreed that you are running lean at idle.
Start... Mar 19 2021, 05:33 AM JamesM
Agreed that you are running lean at idle.
Star... Mar 19 2021, 08:45 AM rjames
Agreed that you are running lean at idle.
Sta... Mar 19 2021, 11:39 AM 914_7T3 My ‘73 had the same symptoms and it was indeed t... Mar 19 2021, 01:28 PM |
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