1998 1.25 Zetec Fiesta under load I loose powe on Acceleration as if its miss firing, if I take my foot off the power the engine pick up again, changed plugs ect but still have the problem. any ideas please.
It is the crank shaft sensor or the wires which run to the sensor. i have changed mine and it sorted the prblem straight away. rob
Rob turner, March 2011
At last found the problem it was the MAF Sensor got hold of a scond hand unit runs mutch smoother.
Kayen 22, March 2009
Sorry for the time delay on getting back to this list! I have changed the O2 sensor no change to the power loss! I did put some injector cleaner in the tank befor Xmass and it mad the car better but only for a short time. I am now lost on the next thing to do. any sugestions please.
Kayen, February 2009
Well I have changed the TPS it mad no diferance. I have orded a Diagnostic tool from e bay to check for any fault codes befor I change any more parts. I have a new exhaust on the car so not willing to pay out for another just yet. I will get back to you when i have done the Diagnostics.
Kayen, December 2008
could be rust in your exhaust system thats wt happened to mine it wouldn't go above 50mph... new exhaust system and it flies!!!
sean_d_411, November 2008
I have a 1997 Ford Fiesta 1.25 Zetec s with the same problem. When driving along at a constant speed there is a loss of power, if I go full throtle it does nothing and if I let off completely and then apply throttle again it will pick up. I just had the lamba sensor replaced and this has made the car run worse.
