[urq] Overboost Problem

Ken LiPani mentosman42 at gmail.com
Thu Oct 7 10:04:36 PDT 2010


Car is an 83 quattro with an MC-1 swap but the P.O. that did the swap
left the MAC-02 ecu in the car. problem is i got the car out of the
shop and took it for a test drive after doing a lot of work and the
car is overboosting/predetonating. when i get into it(4500-6000) the
dash gauge reads 2 bars of boost and the car is definetly
predetonating. i know i shouldnt be making that much boost on this car
because it was never chipped and i dont think that the P.O. installed
a heavy spring.

im wondering if the problem is that the wastegate that is on the car
is the one that came from the car the MC-1 came from and not the
original WX wastegate.

all of the vac and pressure lines were checked and should be routed correctly.

thanks
-Ken


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