MC2 problems

[Dag Bøsterud]

I've been plagued by misfiring, but I found the source of this at last. I tiny vacuum leak made the system go bananas.

Now I'm facing boost problems. The car won't boost to more than 0,6-0,7 bars.
I've tried using a 0,8 wg-spring, but even then it won't boost more. I've checked every clamp and every hose imaginable.
Everything (and I mean everything) is brand new.

Vacuum hoses, spark plugs, injectors w/seals, misc. sensors, oxygen sensor (bosch), spark plug wires... you name it, I've replaced it.
The only thing I haven't replaced is the air intake sensor, but I have resoldered it.

I get no fault codes.

The chip I'm using at the moment is an MTM-chip, should produce about 205 hp.

/Dag

1990 Audi 100 TQ Sport Exklusiv