Hello,

I 'm french and I own an escort rs 1600i and focus 2.0 zetec .

I have a problem with the focus that I can not settle

When the engine is warm the regime to a lot of trouble down at times it remains squarely accelerated.

I have already changed :

slowed valve
vvs sensor
throttle position sensor
pCV valve

ford in there with no solution, no error message

Thanks for your help

sorry for the translator if the text is not very correct