hi, first post so some simple advice would be appreciated,

right i have a 1998 ford fiesta 1.25 zetec,
engine was running fine but then the car started stuttering/jerking and i noticed that i was low on petrol so just thought it was this, but i was wrong.
now the car stutters/jerks while accelerating hard, mainly in 2nd.3rd gear but does it in all,
i checked all spark plugs and HT leads they seam fine,
topped up with fuel,
replaced TPS
cleaned throttle body with carb cleaner, but the engine still stutters

could it be a dirty/clogged fuel filter? or anything else.

BTW the car idles ok-ish it idles about 1100, but drops and rises a little but nothing major, thanks guy

matt

 

High idle is an indication of an air leak. Check for split/cracked hoses.
Is the exhaust completely leak free? Check around the oxygen sensor.

 

Could also try to disconnect your MAF, this will make the ECU use a pre-stored value instead of that from MAF. If that dosn't help, stop guessing and get a faultcode read out done. Might be a problem with the harness to the TPS aswell, Autodata had some notes about that being a standard issue...

Good luck!

 

ive already disconnected the MAF, this did reduce the jerking but it was still happening, thanks for the helps guys

 

forgot to mention, NO ENGINE MANAGEMENT LIGHT HAS COME ON

matt

 

try a new coil!

 

yeap, i have 2 near new coils and leads on their way as i know the fiestas have this problem, so hopefully one of them will work.
cheers guys
matt