Project Daily Sigma (16V TU)

[darrenjlobb]

As a bit of an update,

We have now 100% cured the missfire, I bought some NGK lead ends (straight long style) from local auto parts place, and fitted them to the ford leads, and works like a treat, cant imagine how , but the other leads were obviously managing to arc somehow...possibly cheapy / crappy rubber boots on the ends im thinking...or maybe moisture on the outside of the plugs? Either way it seems ok now...

Only issue is the idle now, altho we are thinking / hoping its lambda related, as if semi reset it, it will idle for about minutes, and then slowly but surely make it richer and richer, until the icv cant let anymore air in, and then it just conks out...if you dissconnect the lambda it seems to idle ok or at least, for alot longer before eventually dying...so think im just going to have to get a new proper one (NGK or bosch could anyone advise? or other?) and see if that sorts it..

Either way, it now starts and drives much better without the missfire, so at least I have my daily driver back on the road / working which is the main thing!

Thanks for all the help / advise from people...(bledy petrols!!)