After finishing up my bench testing I finished assembling my unit and did a final test. Very erratic operation. took case back off and realized the RPM pot had been turned way too high. After getting the unit back to an operational RPM I noticed that two of the injector drivers were not firing (C and E). I scoped the inputs and they were good but the ouputs were dead, GONZO. Anyone ever have these type of failures with a Stim board?
Does DIYAutotune have spare driver transistors or should I check out local supplies?
EDIT:
As a side note I noticed that the injector driver output is normally high with pulses going low. Is this normal? Just doesn't seem correct to me.
Merle
MS3X Expansion Card Failure
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merlewagner
- MS/Extra Newbie
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MS3X Expansion Card Failure
Last edited by merlewagner on Sat Mar 14, 2015 11:38 am, edited 1 time in total.
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racingmini_mtl
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Re: MS3X Expansion Card Failure
Contact them before attempting a repair. They might be able to help you with a better solution.
Jean
Jean
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Matt Cramer
- Super MS/Extra'er
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Re: MS3X Expansion Card Failure
There's a one year warranty on the card - email us at websales@diyautotune.com; if it's broken we can replace it.
Matt Cramer -1966 Dodge Dart slant six running on MS3X