MS1 3.0, 29y4a
S480 turbo, 396 small block ford
It actually fires right up, and idles reasonably well at the moment, but has an intermittent issue where it will stall or nearly stall while idling. There does not seem to be any pattern to it, and is random. Attached is my datalog and MSQ of the setup as it currently sits.
I'm attempting to make sense of what the likely issues would be by looking at the datalog, and being an amateur, nothing is particularly sticking out to me. Battery voltage and AFR looks good throughout the entire range, and of course MAP, duty cycle and pulse width all spike at the same time the engine stalls or nearly stalls.
I am using an MSD 6al box, that was working without issue on my old setup within the last 2 weeks, triggered off pin 36.
Fixed spark angle has been verified
Any input?
Intermittent shut down/stall issue
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- Super MS/Extra'er
- Posts: 17507
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Re: Intermittent shut down/stall issue
Your acceleration enrichment is false triggering and dumping extra fuel, making the engine hiccup.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Re: Intermittent shut down/stall issue
Nailed it! Thanks!