MSefi.com read only forum (Jan.15,2018)

got her up and running. started with first crank. now I have to fine tune the computer. Thanks for all your help. I started it with the l jet wiring and a pig tail I built. Now I will hook up the Diy harness all all the assundry sensors. You guys are great!

Matt
I printed the pdf schematic of the v3 board. While checking the circuits at the u3 the ecu came alive and the stim is working. all guages are functional. Is there an issue with the opto isolator?
Thanks for the help so far

Matt
I reloaded firmware and now have communication. All gauages are functional on megatune except rpm and pulse width. Where do I go from here?
Thanks my friend

Thanks Matt
All the voltages are correct. I have noticed that d 19 has the same resistance in both directions. Could that be the culprit?

I have an ms I processor with a v3 board and standard code. I had the ms working but when wiring the tps on the car I mistakenly connected the vref to the ground wire. now the ms will not work at all. The fuel pump light comes on and then goes out and it does not work at all on the stim. Any ...