cylinder misfire

paintballpimp765 · 06-04-2008, 10:48 AM

i just got a 1997 a4 1.8t with 125k miles on it and ive only had it for a week and a half and the check engine light came on yesterday. my buddy came over with vag-com and we found out cylinder 2 was misfiring. so we switched the coil packs to see if that changed anything and it didnt, so we switched the spark plugs and that fixed it...for a day. now today the light came back on while i was on my way to get new spark plugs, so i got the new ones (they were cheap ones just to get me over to black forest to get some nice ones) but they didnt fix the misfire. i do have a leaky valve cover gasket which i gt a new one i just havent replaced it yet, could that be causing the misfire? any help is greatly appreciated!

MIKEY01avant · 06-04-2008, 11:47 AM

could even be your plug wires going bad.

paintballpimp765 · 06-04-2008, 11:58 AM

would that cause only one cylinder to misfire?

MIKEY01avant · 06-04-2008, 12:03 PM

Yes it could be just one spark plug wire.

best way to tell if wires are bad is have car running and use a spray bottle on the wires and see if any sparks are jumping from the wires. Works best when its getting dark.

paintballpimp765 · 06-04-2008, 10:28 PM

alright so the wire going to cylinder 2 is bad (thanks Mikey) how much does a job to replace those cost? is there a DIY on it and where can i go about getting the wires? thanks

MIKEY01avant · 06-05-2008, 07:36 AM

you should do all 4 wires. I did find a diy for it but i cant remember where maybe at :: a4mods.com :: - The Premiere Audi A4 Modification Guide and Pictures Library I think. dealer price is crazy for them and they only sell in singles not in a set (what a scam).

paintballpimp765 · 06-05-2008, 09:23 AM

is there a possibility that it is the ignition control module?

paintballpimp765 · 06-05-2008, 01:00 PM

does anyone know the part number for the coilpack harness?

06-04-2008, 10:48 AM	#1 (permalink)
paintballpimp765 Newbie Join Date: Jun 2008 Location: NC Posts: 6 Gallery: (0)	cylinder misfire i just got a 1997 a4 1.8t with 125k miles on it and ive only had it for a week and a half and the check engine light came on yesterday. my buddy came over with vag-com and we found out cylinder 2 was misfiring. so we switched the coil packs to see if that changed anything and it didnt, so we switched the spark plugs and that fixed it...for a day. now today the light came back on while i was on my way to get new spark plugs, so i got the new ones (they were cheap ones just to get me over to black forest to get some nice ones) but they didnt fix the misfire. i do have a leaky valve cover gasket which i gt a new one i just havent replaced it yet, could that be causing the misfire? any help is greatly appreciated!

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06-04-2008, 11:47 AM	#2 (permalink)
MIKEY01avant Newbie Join Date: Apr 2008 Posts: 9 Gallery: (0)	could even be your plug wires going bad.

06-04-2008, 11:58 AM	#3 (permalink)
paintballpimp765 Newbie Join Date: Jun 2008 Location: NC Posts: 6 Gallery: (0)	would that cause only one cylinder to misfire?

06-04-2008, 12:03 PM	#4 (permalink)
MIKEY01avant Newbie Join Date: Apr 2008 Posts: 9 Gallery: (0)	Yes it could be just one spark plug wire. best way to tell if wires are bad is have car running and use a spray bottle on the wires and see if any sparks are jumping from the wires. Works best when its getting dark.

06-04-2008, 10:28 PM	#5 (permalink)
paintballpimp765 Newbie Join Date: Jun 2008 Location: NC Posts: 6 Gallery: (0)	alright so the wire going to cylinder 2 is bad (thanks Mikey) how much does a job to replace those cost? is there a DIY on it and where can i go about getting the wires? thanks

06-05-2008, 07:36 AM	#6 (permalink)
MIKEY01avant Newbie Join Date: Apr 2008 Posts: 9 Gallery: (0)	you should do all 4 wires. I did find a diy for it but i cant remember where maybe at :: a4mods.com :: - The Premiere Audi A4 Modification Guide and Pictures Library I think. dealer price is crazy for them and they only sell in singles not in a set (what a scam).

06-05-2008, 09:23 AM	#7 (permalink)
paintballpimp765 Newbie Join Date: Jun 2008 Location: NC Posts: 6 Gallery: (0)	is there a possibility that it is the ignition control module?

06-05-2008, 01:00 PM	#8 (permalink)
paintballpimp765 Newbie Join Date: Jun 2008 Location: NC Posts: 6 Gallery: (0)	does anyone know the part number for the coilpack harness?

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