krpt5490

I recently installed a 2nd hand (but never used) MS2 Basic in my 1996 turbo. It is not priming fuel and is not supplying it once on either (if jumping FP+GND and disconnecting). I've looked through all the similar threads and unfortunately am not seeing any solutions, just jumping the fuel pump jumper in 90-93 AFM but this wouldn't apply here. Everything is reading correctly otherwise - fuel pressure shows reading, wideband, timing is set. The car was originally setup for voodoo+bipes but I've disconnected everything and I don't believe the voodoo even touched the F/P and only changed injector signals anyway.

I can get the car running if I jump the FP on the diagnostics box. Idles fine. I haven't left the garage for the above reason but things seem okay otherwise. Waiting to hear from Rev on whether this serial # runs stock firmware in which case I can try updating firmware but are there any settings I may be missing? I have not yet installed my GM IAT but to my understanding this shouldn't matter as it's just using the MAF right now.

[Ode]

I previously had similar problem with my early MS2E. If i recall correctly, it was fixed by sending it to rev and him replacing the fuel pump circuit.

krpt5490

Not what I was hoping to hear but oh well, guess I'll wait for him to respond at this point. Thank you for sharing, at least I got started early and should still have this setup in time for warm weather.

Reverant

iTrader: (10)

There's a jumper inside the ECU for the fuel pump if this is a 96-97. Put it the other way around.

krpt5490

Thank you, will give that a try tonight and report back.

krpt5490

I attached photos of the board, which are you referring to? JP1 has continuity across, not sure if that's the one you wanted me to flip.

I put in my stock ECU just to re-confirm I didn't pull any wires out during the first swap and it started up fine. Is there anything MS2 might be not be getting a signal for that would cause it to not prime but the stock ECU wouldn't care for? Any other connections I can verify locally?

Thanks!

Reverant

iTrader: (10)

Yes, JP1.

krpt5490

I simply turned it to face the other way, if I should instead jump the other connector let me know.

EDIT: Tracing everything around it looks like you wanted me to actually move it to the other pin. The pin diagram I have seems to suggest JP1 waa connecting the empty input below FP in to the board. I flipped it to the other pin which I believe is FP and we'll see.

Will report back, thank you for the continued help.

Yellow is currently jumped. Switching jumper to red configuration

krpt5490

Car is priming and starting! Thank you!

If you wouldn't mind confirming- does this unit run stock megasquirt firmware? Figure I may as well upgrade it to the latest before taking it to get tuned.

Reverant

iTrader: (10)

Yes, it does.