Rough running 320, help needed!

[hazd31]

As per title

Running like its misfiring

Started to run rough between 3-4000rpm but now its missing all through the rev range, recent new plugs, and it drived daily

any ideas?

[Brianmoooore]

What does it run like when the engine is cold?

[hazd31]

Cheers guys, i will throw a new dizzy and leads on next week i think, runs lumpy hot and cold.

[Rtaylor2208]

Dont go buying leads and a dizzy, thats £100 worth of parts which might not be the cause.

Look through the idling page in the wiki, this could be a number of things from Air Leaks, a faulty AFM, TPS, ICV etc etc.

Work through testing each thing listed and post up the results including any resistance readings, the chances are it will cost you noting but your own time to get it running correctly.

[hazd31]

All sorted, Swapped some 26 year old leads off the e28 to raplace the 3 year old ones on the 30, runs like a dream now!