Recently I installed the 60mm Jeep throttle body. It has no vacuum leaks, and idles fine where it should. I reset the ECU, and took it out for a spin. If I accelerate hard, I get fuel cut in any gear. However, if I accelerate slowly, I can redline in first, second, but cuts again in third. Is this fuel cut? It feels like you hit a wall almost. Is there any supporting mods required for the 60mm TB?

Originally posted by Nick331
Recently I installed the 60mm Jeep throttle body. It has no vacuum leaks, and idles fine where it should. I reset the ECU, and took it out for a spin. If I accelerate hard, I get fuel cut in any gear. However, if I accelerate slowly, I can redline in first, second, but cuts again in third. Is this fuel cut? It feels like you hit a wall almost. Is there any supporting mods required for the 60mm TB?

I've been running a 60mm for years now...the only thing I could tell you is to check your sensors on the TB. and your MAP voltage.

Check to make sure that you installed the TPS correctly and OHM it to see if it's within spec. You can also check the MAP. Fuel cut will make the car stutter like its running on 1-2 cylinders and you will lose all power(horsepower not electrical power).