XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

ecu key

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Old Apr 19, 2018 | 09:40 AM
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Default ecu key

anyone know of a supplier of the mixture adjustment key/knob that fits in the ecu,... now I've adjusted the followers It needs to be sorted a bit
 
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Old Apr 19, 2018 | 09:55 AM
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Rex
This is what I did, I found a bit of Bundy tube: O/D just less than the hole, and carefully flattened it one one side to grip the "D"-shaped inner spindle. Worked a treat.
https://www.airsupplies.co.uk/bundy-tube-imperial
The Bundy tube was the only thing I could find rigid enough by thin enough to fit between the hole and the spindle.


Greg
 
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Old Apr 19, 2018 | 02:04 PM
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I used a piece of stainless tubing just like Greg suggested. It doesn't take much to turn the adjuster.

If you have a later car with the airbags, a piece of tubing also makes a great airbag disarming tool to allow steering wheel removal.
 
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Old Apr 19, 2018 | 02:23 PM
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Or pop the ECU open, unmount the pot from its bracket, remove the bracket and mount the pot in the access hole. Done.
 
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Old Apr 19, 2018 | 04:08 PM
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I used a plastic ball point pen housing, it just slipped right over the knob and it was easy to turn I could feel the clicks as well.
 
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Old Apr 27, 2018 | 12:44 AM
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I used the metal tubing from a small paint brush. did have to crimp it, then added a bit of solder to the seem after the fitting. I also wound some tape on for the handle/finger end. will try to remember to take a pic to show you. I saw one once on Ebay, I think they were asking about 35 dollars
 
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Old Apr 27, 2018 | 12:50 AM
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Here you go, I made mine in a similar fashion

Sean's Jaguar Tech Pages - Jaguar EFI ECU Adjustment Tool
 
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Old Apr 27, 2018 | 09:36 PM
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Is there a writeup on how to reset to baseline and what each click does in either direction?
 
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Old Aug 23, 2022 | 01:49 PM
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Originally Posted by JigJag
Or pop the ECU open, unmount the pot from its bracket, remove the bracket and mount the pot in the access hole. Done.
How do you mean, any pics pls
 
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