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Old 07-14-2012, 06:09 PM   #1
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Default 1994 MS1 going into a late 1995

Sooooo I am trying to road tune this car and it's running ultra-rough. I'm not sure why. The tach doesn't work so that tells me it's a late, 3-pin coil 1995 (verified the coil).

What are the chances this 1994 computer will not work in this late 1995 car?

We have spark on all cylinders, I believe we have fuel on all cylinders, I'm not sure what's next. Do we need to rewire? What should I do?

This is a Brain-built MS1, rewired harness by one guy, then recently rewired to go back to the original design (lol).
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Old 07-14-2012, 06:11 PM   #2
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the only difference in wiring is the tach output IIRC.
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Old 07-14-2012, 06:13 PM   #3
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Quote:
Originally Posted by Braineack View Post
the only difference in wiring is the tach output IIRC.
What do you recommend I do next, aside from the tach output? It idles but slightly rough, AFR is reasonable, spark angle is reasonable, plugs are new and .030"; not sure what to do next.
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File Type: msq Jamie Mason 1.msq (39.5 KB, 87 views)
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Old 07-14-2012, 06:17 PM   #4
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they 95.5 have the dual notched crank pulley? you synced correctly?
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Old 07-14-2012, 06:23 PM   #5
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Quote:
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they 95.5 have the dual notched crank pulley? you synced correctly?
dual notch
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Old 07-14-2012, 06:28 PM   #6
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Thoughts on coil settings?
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Old 07-14-2012, 06:30 PM   #7
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i dunno. everything seems fine.
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Old 07-14-2012, 07:52 PM   #8
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It looks like a harness problem, thanks for the help.
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Old 07-15-2012, 09:38 AM   #9
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did you check/set the timing with a timing light?
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Old 07-15-2012, 12:51 PM   #10
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did you check/set the timing with a timing light?
Of course, on more than one occassion. We confirmed pully/TDC position too.
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Old 07-15-2012, 04:08 PM   #11
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both cams timed properly? recent tming belt job?
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