951 with LR M-Tune kit.

Discuss Bosch (Porsche, BMW, Volvo, etc) tuning topics here. Request definitions, discuss parameters, etc.

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riouxcharles951
Posts: 1
Joined: Sat Aug 29, 2020 6:33 pm
Location: Montreal QC, Canada

951 with LR M-Tune kit.

Post by riouxcharles951 »

Hello All,

I have a issue with my ECU. Everything is normal at idle but when I press on fuel, the datalogger shows data that doesn't make sense and the engine act's like a fuel cutoff for a fraction of seconds. I changed all caps on the data side and newer chips made by TI them self(except the famous S100). It got better but still, it sows the hickups... See datalog in an excel format. Look at the data when the battery voltage is at 8.7V and all others don't make sense... I'm currently tracing on bad grounds and so far, everything is OK. I will hookup my scope and see any difference between grounds on the board. The A/D chip is looking at voltage based on analog ground... Will see.

Anyone had the similar problem? I'd really like more info on this.

Thanks,
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Small_run.zip
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1986 Porsche 951.
1999 Ford F-150(work truck all beat-up but works like a charm! :D )
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