Stephen Max

Your running a JWT ECU and a Cartech FMU ?? I wont be ok with running an ECU, no FMU

-matt

 

I recently added the Cartech FMU in order to enrich the afr under partial throttle acceleration when you are close to zero manifold vacuum but not boosting. The JWT ecu seems to set too lean an afr under those conditions (at least mine does). The Cartech fmu allows you to set a higher fuel pressure at low vacuum levels without flooding the engine under boost.

You may not need it, but I like having a lot of different tuning options available.