Any ideas why it would be cutting out when you rev it ?

The engine is from a 1.8 Focus.

Runs fine otherwise.

 

Cuts out when you come off the throttle and the revs drop back down?? Or cuts out as you press the throttle??

Matt

 

Cuts out as you press the throttle.

 

MAP sensor.

 

Umm, unless your on custom management you won't have a MAP sensor. Does it happen if you accelerate gently? Sounds like you under fueling on initial accel.. More than likely tps.

Matt

 

hi i have recently converted my 1.6 cvh engine mk4 orion to a 1.8 fiesta zetec engine using the fiesta ecu and loom wired into my own loom car starts fine but as soon as the engine warms up and you try to drive it it starts splutering and losses power to the point where it hardly moves when you press the accelerator to the point where it tries to cut out help me please