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Old Feb 4, 2009, 07:55 AM   #12
wreckleford
Evolving Member
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Join Date: Jun 2003
Location: Jamaica
Posts: 406

Drives: Evo I with an 8 ECU

Quote:
Originally Posted by Vigman View Post
Ok, I checked the manuals.
Your solution to use the Tephra patch with your AEM set should be something like this:

Hope it helps.
Cheers.
Can you explain the use of the diode between power and the AEM safe wire?

Also the grounded 10 ohm resistor and the zener diode?

For some reason I thought the output for the map switching needed to be grounded and not the ECU pulling to ground.

Rassfass, I built an adapter harness for an Evo 4 with a 9 engine so it can use the 9 ECU and get Mivec control. I have a few unused pins you could get.
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