knob on ECU....how to adjust ?, Someone told me once to count the clicks from left to right? |
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knob on ECU....how to adjust ?, Someone told me once to count the clicks from left to right? |
second wind |
Dec 5 2022, 12:28 PM
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#1
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Senior Member Group: Members Posts: 853 Joined: 30-December 10 From: Los Angeles, California Member No.: 12,543 Region Association: Southern California |
Hello again teener family....I was told long ago that the knob on the ECU should be turned all the way to the left and then turn to the right for 13 clicks....can someone please explain what the knob does and how to adjust it? Car runs great so I don't want to touch it before I know what I am doing. Any and all comments will be greatly appreciated.....thank you very much!!
gg |
speed metal army |
Dec 5 2022, 12:40 PM
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#2
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Waiting for the rain to stop... Group: Members Posts: 1,068 Joined: 4-September 10 From: PNW Member No.: 12,137 Region Association: Canada |
Hello again teener family....I was told long ago that the knob on the ECU should be turned all the way to the left and then turn to the right for 13 clicks....can someone please explain what the knob does and how to adjust it? Car runs great so I don't want to touch it before I know what I am doing. Any and all comments will be greatly appreciated.....thank you very much!! gg If car runs great.... Dont touch it! (IMG:style_emoticons/default/smile.gif) Why poke the bear? |
second wind |
Dec 5 2022, 12:42 PM
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#3
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Senior Member Group: Members Posts: 853 Joined: 30-December 10 From: Los Angeles, California Member No.: 12,543 Region Association: Southern California |
Hello again teener family....I was told long ago that the knob on the ECU should be turned all the way to the left and then turn to the right for 13 clicks....can someone please explain what the knob does and how to adjust it? Car runs great so I don't want to touch it before I know what I am doing. Any and all comments will be greatly appreciated.....thank you very much!! gg If car runs great.... Dont touch it! (IMG:style_emoticons/default/smile.gif) Why poke the bear? I get it but knowledge is power....in the 914 world you need to know as much as possible to keep things going....thank you for your reply. gg |
mihai914 |
Dec 5 2022, 12:48 PM
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#4
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Senior Member Group: Members Posts: 800 Joined: 2-March 05 From: Montreal, QC Member No.: 3,697 Region Association: None |
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914werke |
Dec 5 2022, 12:52 PM
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#5
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"I got blisters on me fingers" Group: Members Posts: 10,059 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Idle fine tune only.
Your recollection is correct full L. is 0 value. My understanding is that the stock setting is in the middle of its adj range but I dont recall if/where that is defined in any OE source. Gross adjust idle value with the TB screw, then you can use the knob on later ECU to fine tune the idle, turning R. enriching the mixture. PS - Brad is the MAN! |
Superhawk996 |
Dec 5 2022, 12:58 PM
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#6
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914 Guru Group: Members Posts: 5,816 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Hello again teener family....I was told long ago that the knob on the ECU should be turned all the way to the left and then turn to the right for 13 clicks....can someone please explain what the knob does and how to adjust it? Car runs great so I don't want to touch it before I know what I am doing. Any and all comments will be greatly appreciated.....thank you very much!! gg If car runs great.... Dont touch it! (IMG:style_emoticons/default/smile.gif) (IMG:style_emoticons/default/agree.gif) The knob is a fine tune on fuel mixture at idle. It has very little effect overall. MAP and CHT sensors have way more influence on how the car starts and runs under load than that knob. That knob really is only to adjust CO for emissions purposes as measured with a tail pipe sniffer. Having said that - no need to be moving it if your already running well. |
914werke |
Dec 5 2022, 01:14 PM
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#7
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"I got blisters on me fingers" Group: Members Posts: 10,059 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
There is the source. (IMG:style_emoticons/default/cheer.gif)
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rjames |
Dec 5 2022, 03:12 PM
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#8
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I'm made of metal Group: Members Posts: 3,932 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
As a general rule, I've found that turning it counter-clockwise until the idle starts to hunt (too lean) followed by then turning it clockwise 1-2 clicks to richen the mixture will put you in the ballpark of where it should be set. This assumes that the MPS is adjusted properly as well.
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FlacaProductions |
Dec 6 2022, 11:23 AM
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#9
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Senior Member Group: Members Posts: 1,584 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
Curious @rjames - will this make a noticeable difference in how rich the exhaust will smell?
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rjames |
Dec 6 2022, 11:27 AM
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#10
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I'm made of metal Group: Members Posts: 3,932 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
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