Hello people back for some help after i thought i had solved my problem. (If thats ok)
I have a 1994 Escort 1.4i (CVH type)
It failed the MOT on emmissions.
Lambda was at 0.67 CO was at 12.57 HC was at 669ppm
At the weekend i stripped the head down, cleaned the lot out, re-ground the valves in, changed the oil, plugs, ect etc. re took it for the MOT and everything was slightly higher except Lambda wich was slightly lower.
Took it back home and noticed the plugs were really badly covered in soot.
I then went to halfords and bought a Gunson ECU tester, this throw up 2 errors a 24 and 25, which 24 is Throttle positioning sensor and 25 is Vane air flow meter.
Can these just be simply changed? does anybody know if i could easily test these, as i dont want to spend £160 at Ford to find its not these. I tested the TPS with a meter and was getting between 1.04 and 4.98 ohms as i moved from full throttle to normal.
Thanks for any help in advance
Ta Si