Hi just changed a throttle body on a 03 focus no joy what happens when i pull up the rpm is above 2000 the after a time it falls to 900

and its using a lot of petrol any idea be most grateful thanks p/s it had a new inlet valve fitted

Hi Del, what's the throttle/accelerator cable like, could it just be sticking ?

When you stop, hook your foot under the accelerator pedal and try and lift it up - do the revs drop away quicker ?

ive tried that still the same  thanks 

Hi Del, I'm not up much on the 2003 Focus, but does it have 'Swirl Flaps' in the inlet manifold ? I know later models (Focus Mk2 and Mondeo Mk4) do and they were prone to sticking which caused problems with idle speeds and revs hanging.

no Swirl Flaps i have a spare inlet manifold and there is no flaps in that thanks for your reply

Is it directly linked to the throttle pedal, or is it actuator controlled?

If it's an actuator, it probably needs to go through a learning cycle. FORSCAN or garage, perhaps.

Hi, did you disconnect the battery?

If not disconnect for 10 mins, then when reconnected turn the ignition on but do not start engine OR TOUCH THROTTLE.

Leave for a minute and it should re-set.

Then when you do start engine, don't touch throttle again and leave to idle for one minute.

If that fails, throttle body is faulty

1 hour ago, DaveT70 said:

Hi, did you disconnect the battery?

If not disconnect for 10 mins, then when reconnected turn the ignition on but do not start engine OR TOUCH THROTTLE.

Leave for a minute and it should re-set.

Then when you do start engine, don't touch throttle again and leave to idle for one minute.

If that fails, throttle body is faulty

thanks for that 🙂

On 8/6/2021 at 11:58 AM, dezwez said:

thanks for that 🙂

Did it work?

I've got the car back this Sunday so will try then its my grandsons car 👍

On 8/11/2021 at 8:44 AM, DaveT70 said:

Did it work?

no it did not but turned out to be the idle control valve 

thank to all who reply 👍