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

 

my focus


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nobody ?

 

You might not be getting a response because this phrase doesn't make sense in English. Are you saying it has idle problems when warm?

Maybe check for vacuum leaks from a split hose or something?

 

yes , the engine does not return to idle , he stays accelerate

 

Air leak, or sticking idle speed control valve?

 

air leak : not control

speed control valve : new

the water temperature sensor ? bad information to ecu ?

 

Mass air flow sensor, they can upset the idle (engine revs, rpm).

 

I try and engine malfunctions

 

Oooooh bugger. Sorry, I somehow replied to the wrong thread.