16vzetec

my mk4 escort has 2.0l zetec conversion.
running on mondeo 2.0l deep ecu.
when its on full throttle at about 4-5rpm it cuts out completely like the spark just cuts.
then in a few seconds it comes back.
its got ported head and race exhaust and k and n but thats about it for the mods really.
i fitted powerchip to see if it helped but still does it.
it doesnt smell rich and doesnt get too hot so seems to run ok.
it will rev high but only on half throttle.
any ideas????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ?????????????

Wardy257

Well your ECU map will be a mile out.

What inlet are you using?

Have you fault checked your CPS?

What MAF are you using?

ShepZetec-S

Dont mean to sound silly but have you checked yor spark plugs, i had a z-s and it started to splutter and try to give up, the i rememberd i had never changed the plugs, did that and it ran like a dream. I'm no mechanic but any inputs a good thing

16vzetec

YEAH SPARK PLUGS NEW