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

hello guys;

I got a friend who had someone install MS V3 on his mustang, he told me that when he connect the TPS the car doesn't start, I have no idea how did they wire the car but its a fuel only setup.

I noticed that when they connect the CTS the car floods and doesn't start, when they connect the TPS the same happened, I have setups from other cars that I have tunned "but with V2.2, doubt that would make a difference" but that did not solve the problem. they have set it fueling alternating mode and # of squirts to 8.
when I change that to 2 or make it simulatneous and 1squirt it floods and doesn't start again.

if I disconnect cts turn it on then connect cts it runs so rich that it dies.

any ideas what can be wrong? should I check all the wiring?

best regards
Nabil

Nabil,

Yeah, that certainly sounds like a wiring problem. If you post a datalog we might be able to spot other problems.

Lance.

Sounds as if the TPS might be wired backwards. It would be easy to do but you should notice it in Megatune.