On 23/06/2005 01:22 Parish wrote:

On 20/06/2005 11:25 ChrisJ wrote:

I'm not sure if this is classed as off topic but as I'm going to fix it
myself (all being well) I thought I'd at least try...

I've got an N reg 1.25 Fiesta Zetec with 80k on the clock. It starts

[snip]

Problem 2.
This started after the service and it didn't happen before the service.
We live in a hilly area and so regularly use engine revs between
4k-6k. Before the service the engine would rev freely into this range.
Now however the engine revs freely (as before) until it hits approx
4100 rpm then its like someone has put the handbrake on and the engine
only accelerates slowly to 6k. Its a real change in acceleration.
Change gear and the engine pulls strongly up to 4k again.
The garage has changed the fuel filter to try to fix this problem.
Their computer said the car was reporting a low fule pressure but they
couldn't work out where.


SWMBO has the same model and it developed _exactly_ the same problem.
The cause was a blocked or contaminated MAF (Mass Air Flow) sensor.
Total cost, at a Ford main dealer (including the initial diagnostic
check) £200.02 inc VAT.

A Ford dealer will hook the car up to the diagnostic kit and can confirm
this from the error codes - although I'd be surprised if something else
produced _exactly_ the same symptoms.

If you want to take a chance and DIY, the sensor was £51.13+VAT (12
months ago).

The MAF sensor is the cast aluminium bit with wires attached in the
inlet tract between the air filter and the engine. If you want, I'll
take a piccy tomorrow (too dark now).


Here's the pic http://www.magichamster.com/maf.jpg

Parish