ive been having some problems with my a4, when i got it pluged into the computer it said the #1 piston is misfireing. so they guy at audi told us to order another coil and that didnt work then i just got the part that gose between the spark plug and the coil( i dont know the exact name). And still its has a rough idle and vibrates alot. I changed the plugs too. Im not sure whats wrong. From what i found online the #1 piston is the 1st from the front of the engine unless that was wrong, im not sure what else to do.

thanks

 

is it a misfire problem or is it running on 3 cylinders??

 

misfire is like a back fire

 

its running on 3, sorry for the confussion, im going by what i was told.

 

failed coil pack

 

i guess ill have to check the 2 more pistons then, i got a new coil pack, i was told it was the #1 piston so ill check the rest and see if it works.

 

compression check required on all cylinder would be a good thing then post your results

 

Ok, I moved the coils around to see if I could weed out the bad coil pack, no luck. Im not sure how to check for compression, if I need to use a vag, im gonna have to wait till monday to use the one my school has. or I might have to go get it checked out.

 

http://images.google.co.uk/images?q=...ion+test&hl=en

 

ok thanks, im sure i can get one of those this weekend. if not im sure monday ill be ableto do it.