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RE: [T3] FI tuning question (bad ecu?)


> You found that you had a 2 bad ECUs? How did you determine
> that your ECUs
> were bad?

Trial and error.  Original symptoms were intermittent
missing/dying/no-start episodes.  Unpredictable.  While chasing
this one down I did a lot of the things I described earlier.  I
finally suspected the ECU after checking everything else.  When I
swapped a spare ECU in my original symptoms cleared up, but I ran
into a new problem-- this time consistently losing two of my
injector signals when the engine warmed up.  So then I did
everything I could to track down this new problem to no avail.
Finally swapped ECU#1 back in, whereupon the old problem
reappeared.  When I finally tried a third ECU all problems were
gone.  so far .

-Mark

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