Hello,

My Fiesta is poorly. It started with a little judder on start up and white smoke. This was about one month ago. No signs of Head gasket issues as all was ok.

This has carried on up until now.

Basically on start up it judders/mis-fires for about 15-20 seconds then it settles down. It seems to smoke (White) on all start ups. Anyway when the judder stops it drives perfect. No smoke, no judder, it pulls, no loss of power, no overheating and no stalling when stationary.

Anyway things tried so far.

New MAF

New coil pack

New Sparks

New Fuel filter

But sod all. After i put the new coil and plugs in the EML came on. I reset the ECU and the light went and has not come back since. Both oil and coolant are fine and not dropping or does not have any foreign stuff in it.

I bought a ODB reader that bluetooths information to my phone and this morning it came up with this

P0303 - Ford Type Powertrain - Ignition System or Misfire -

ISO/SAE Controlled Description Cylinder Number 3 Misfire Conditions Cause Engine running in a positive torque condition, then the PCM detected a misfire condition in engine cylinder number 3 (lack of spark or fuel metering, base engine)

And again this later

Pending Fault Log ------------------ P0300: Random/Multiple Cylinder Misfire Detected

Going back a few weeks my fuel filter was perished. The fuel came out black when we changed it. So not sure if it threw some crap into the injectors.

This is a video of said smoke. I believe its condensation and I can see no blue to it

s191.photobucket.com/user/Mastspotter/media/201308...l.

It stopped 5 minutes after and ran fine. But as you can see it was persisting it down.

Any suggestions?

Me and my mechanic friend is thinking clogged/faulty injectors maybe from the bad filter. But would a clogged/faulty injector suddenly allow the car to work when its warmed up or would the ECU see this fault and bypass it?

Any help would be great.

Many thanks

Mark