Willem

I've posted the same thing a week ago, but didn't get any helpfull information so I'm hoping to come to know anything now.

The problem is this, when the car builds up it's boost, it starts to misfire, under normal conditions it runs great, but as soon as the pressure gets above 0 psi it goes wrong.
I've checked the cam belt double, the ignition is good, the fuel filter is new, I've checked as many electrical things as I could think of, so I ran out of ideas.

I'm hoping for somebody who recocnized the problem and can help me out.

Thnx.

vroooom ptssssh

Spark plugs? renew if needs be, and gap properly.

Willem

these are new, as the leads.... not sure about the gap, how much should they be??

zippyobrien

iTrader: (2)

re gap the pllugs,
try 0.8 if it still misses, try 0.65


get some standard ford ones, 091c's

or 071c is u can

Willem

I've got the original motorcraft ones, but the sizes you say, that's in inches or centimeters?? I think the last, otherwise it's a huge gap....

But car ran fine for 2000 miles on this setup(sparkplugs, leads etc) and why does the car misfire(??) when it boosts, and without it runs great? Thats what I've been asking myself....