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

MSII v3 with ignition enabled and using a VR sensor. I have used this setup for all my races with no problems. Went Laguna Seca this weekend and no spark. I went through all the usual tests (checking grounds, signals at all the points on the relay board, checking for current at all the usual places) but no spark. I have a perfect connection between my coil negative and the relay board, a good voltage signal from the VR sensor to the relay board. It ran perfectly a couple of days ago but when I got to the track, no spark. The coil is good, the voltage to the coil is correct. I switched my MSII with my spare unit and burned the proper msq to it. I changed the relay board with my spare, all to no avail. Interestingly enough, I have a signal on my tach when cranking but no signal on the Megatune display or Tunerstudio display on my laptop. I get a MAP reading and other readings on Megatune and Tunerstudio but no tach signal or tach count. Something simple is missing here.
Any ideas anyone?

Thanks,
James

Ok, the only thing that got changed was the battery got moved to the rear of the car. There must be too much voltage drop to run the MSII. I will run voltage drop tests tomorrow. Does anyone have other suggestions?

James