Does anyone have experience with doing a resistor mod on a MAC-02?
12-05-2003, 06:38 PM
#1
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Does anyone have experience with doing a resistor mod on a MAC-02?
just curious to see how similar the MAC-02 ECU Board layout is to the MC ECUs.
I am interested in adding a little timing across the rpm band, anyone BTDT?
And in case anyone is wondering I will have plenty of fuel available via an additional injector controller with two 44lbs injectors... I have already by passed the fuel cut using a 4000Q fuel pump relay.
Any help would be greatly appreciated!
I am interested in adding a little timing across the rpm band, anyone BTDT?
And in case anyone is wondering I will have plenty of fuel available via an additional injector controller with two 44lbs injectors... I have already by passed the fuel cut using a 4000Q fuel pump relay.
Any help would be greatly appreciated!
12-07-2003, 07:48 AM
#2
AudiWorld Super User
I wouldn't recommend it.
Although this is a very common modification, I have repaired 10+ MAC-02 ECUs with blown pressure sensors. Almost every one had a resistor mod. This is because the sensor is not designed to supply the amount of current the resistor mod draws from the sensor. This is the second most common failure with MAC-02 ECUs right behind frequency valve circuit failures.
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