Any idea of what would cause an intermittent misfire in my cossie?

1st happened at pod, at high rev's full boost.

Now occasionally happeneing at low rev's with no boost. Today was at about 3 thousand. Rev counter flew up to 7 thousand but the engine rev's did not rise, scared every bird in my village with an almighty bang!

Starting to get really, really annoying now as it does not follow any pattern, does it anytime which is most inconvenient when playing with a Z4!!!!



Any advice would be much appreciated!!!

 

I would of thought Martin being a tech he would of sorted this for you

 

Because he was fixing his diesel saff and will be tomorrow. He is a busy boy!!! So thought i would see if anyone on here has any ideas!!!

 

This is very true.

Im sure the good people on here will be able to help you out.

 

Fingers Crossed!!!!!

 

give me a chance.. i've got my own headaches to sort!

 

Crank position sensor??

 

its not the plugs or map sensor btw... tried those

am hopefully going to try coolant temp sensor and air temp sensor tomorrow if i get time.

 

Anyone else got any ideas?!?!?!

 

leads,,, phase/crank sensor and wiring

 

Have you still got the 3 connecter plugs at the back of the engine bay?

 

Yes connector plugs still thee!

 

cut them out and re-solder the wires then

 

I had exactly the same problem, try cleaning them out but DONT put anything in them ie wd40 make sure inside the connector is clean and dry, if that dont fix it,
time to cut them out and hard wire them

 

Thanks guys, will try cleaning them now. Fingers crossed!!