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Overboost cutoff- Memory locations found!



Well, the boost is starting to rise on my 89 200TQ...........

I found the memory locations for the overboost cutoff 
on the MAC11  and the MAC14 ECU's. 

I must admit that I found them rather easily once I saw how 
it was done in the MAC-02 ECU (I can't take too much credit
as RDH provided me the MAC-02 data ). I reprogrammed the 
stock EPROM and now I get cutoff at around 1.9 bar. I LIKE IT! 
No more hardware hacks required to keep the fuel pump running.

I need to find the boost map that is used to control the WG 
solenoid duty cycle. If I find that map I should be able
to reprogram it to allow the computer to control the boost. 
A slightly stiffer WG spring will be needed as well. 
The timing map boost values should be changed as well.

The search continues........

Scott M.