jimhc

iTrader: (1)

a older gentleman around my area is having a problem with his 4x4 cosworth it misfires on start up and keeps misfiring when cold. once it warms up it idles perfect and runs perfect. been told the ignition side is fine any ideas???

MrC

Blue temp sensor behind the head??

jimhc

iTrader: (1)

wouldnt that just be fueling and over fueling? someone mentioned the multi plugs behind head?

MrC

Yeah if it's still got the multiplugs get em off and solder the wires together, common missfire problems on 4x4's

jimhc

iTrader: (1)

Cheers pal i will let the old guy know

col93saphcos

iTrader: (2)

mine used to be like that,
I reckon condensation in dizzy cap,
put wasted spark kit on it and never any more bother,
give inside dizzy cap spray with wd40 or such like before starting see if it makes any differance

jimhc

iTrader: (1)

The whole ignition side has been checked in a garage and its fine

Fezman1

iTrader: (1)

I would still go to the blue plug in the head first & a set of plugs.
As when it first starts its overfueling (which can sound like a 'miss' to some people or like shes running on 3) this fouls the plugs and so it will miss abit til its burnt that off then it runs fine.