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Installing a VEMS unit on a stock 89 Porsche 911 Carrera 3,2.


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Open issues:

I found the problem with the jumping lambda signal

As i only use Alpha/n it is the TPS signal jumping, i lowered the accel enrichment and gave it a dead band at the beginning, that helped a lot.

But the TPS signal jumping by 1 LSB is allready causing a jumping in the VE table and a jumpy lambda signal as well

For the MAP sensor there are filter settings, are there filter setting available for the TPS as well ?


Engine specs


VEMS-spec: / Needed parts

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Related projects by other users:

Looks like a similar setup: MembersPage/KevinBlack/PorscheTurbo