rsmith

Please help!!!!!!!

had rough idle and vag-com says misfire
cylinder 3

i searched the forum and might be the
ignition amplifier or coil packs?

well, i tried some fuel injection cleaner,
changed the spark plug on #3 Cylind but no help

and i am about to swap around the coil packs,
and i need some detaied instructions..

looking at the coil packs,
i see the 3 rows of coil packs

row one: 3 = 5 (cyl 3 and cyl 5 are connected)
row two: 2 = 4
row three: 1 = 6

and the firing sequence:1-4-3-6-2-5

do i just unplug the wire going into 3 and
then swap with 2? and see if the misfire goes to 2?

and the spark plug wires have different lenghts
and will they reach?

and if i do switch around the wires will i
screw up the engine b/c they'll fire in
different sequence?

and
what other things besides coil packs?
ignition amplifier, MAF? thanks!!!

kayvan_pour

We technically dont have coil packs on or engine. We have a coil power out stage or some thing like that, its on top of our air box. Thats where the output stages come from, there are 3 of them(not parts, 3stages). But i have been having rough starts more than idle, I ordered the new part form audi for 220 yesterday, normally ther are about 300 but my dad some how got a 20 percent discount on it, so maybe you could try that out. But dont guy buying messing around with things before you know whats up. Go 2 your audi dealer and get some body smart to look at for free, thats what they did for me! Go 2 the the 12valve forum for better help!

rsmith

thanks for the info-
I did find a good post
info re testing the ignition amp module:

DIY test of power output stage/ignition amp module N122 (long & BWW)
User account number (aid): 37389
Posted by ArandA4 on 2003-04-09 23:27:42

Testing Ignition Amplifier/Power Output Stage/Ignition Control Unit/Ignitor
N122

Kris Hansen

and those are coils, 3 of them, with dual out puts.

rsmith

It was the Ignition Amplifier
ontop of the airbox causing the
misfires.. apparently it's a common
problem in these ealier A4's

was an easy fix- plug and play...
should have borrowed a friends part to
trouble shoot..

Kris Hansen

What year car do you have? I do not recall my 12v having anythign on the airbox lid...