Fiesta 1993 LX - Poor Engine Running?

hey jules that used to happen to my passat, without touching accelerate it REVS!!! It is likley to be the rev counter, i got mine mend

sfe
April 2007

hi mate if this is a 1.3 c.f.i the single point fuel injection it could be 1 of about 3 i could think

1 if its lacking power as well there is a map sensor hose that often claps this runs from rear of bulk head to valve on manifelt and will be all soft not allowinf vacuum from map sensor
2 it could be a faulty throttle position sensor these can be checked quite easily using a multi meter or just by visually seeing if there is any wiring damage,
3. its always worth cleaning and greasing the main connections to throttle position sensor, idle air valve, vehicle speed sensor, and mainly module,
if it is the efi model i have known inlet manifolds leaking which could cause a number of faults
hope this helps,

paul
January 2007

fiesta isnt it? under the air filter m8.1.1 is it?

dj2ert
June 2006

idle air control valve is cr*ppy

dj2ert
June 2006

take the throttle body off and clean it with an aerosol choke and carb cleaner, you will be removing the carbon deposits of burned fuel from the butterfly.

neil
September 2004