hustler

iTrader: (6)

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).

Braineack

iTrader: (62)

the only difference in wiring is the tach output IIRC.

hustler

iTrader: (6)

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.

Braineack

iTrader: (62)

they 95.5 have the dual notched crank pulley? you synced correctly?

hustler

iTrader: (6)

dual notch

hustler

iTrader: (6)

Thoughts on coil settings?

Braineack

iTrader: (62)

i dunno. everything seems fine.

hustler

iTrader: (6)

It looks like a harness problem, thanks for the help.

y8s

iTrader: (8)

did you check/set the timing with a timing light?

hustler

iTrader: (6)

Of course, on more than one occassion. We confirmed pully/TDC position too.

y8s

iTrader: (8)

both cams timed properly? recent tming belt job?