PDA

View Full Version : Misfire cyclinder 3 coil packs!!



Fukenfast
09-24-2009, 07:43 PM
Hi I just put a new diverter valve on my car yesterday and it was running great. Today I was driving my car and it started to stumble, I knew what that meant. I used the OBD and got P0303, cylinder 3 misfire. This is strange because I had this happen to me last spring but it was cylinder 2,3, & 4. And ended up replacing all of the coil packs. So I took out cylinder 3 coil pack and the metal was purple at the bottom so I switched it with cylinder 4. Sure enough misfire in cylinder 4. So my question is, why are my coil packs dieing out so fast. The brand is STI. Is it the diverter valve, I also have an intake on it. I just moved from San Diego to Tucson, is it the hot weather???? Any help is appreciated, thanks a lot...oh yeah here are my specs.

2001 A4 1.8t FWD

audi til I die
09-24-2009, 07:44 PM
Well get Hitachi E coils. I doubt the problem is DV related.
What's the gap on your plugs?

Fukenfast
09-24-2009, 07:47 PM
Um I cant remember the gap, they were pre-gaped when I bought them. Where can I get the Hitachi E's at? Auto zone or something like that?
Thanks for the reply

Seerlah
09-24-2009, 07:48 PM
x2 On the Hitachi E coil packs. I even had to upgrade from the revised R versions to Hitachi E.

http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Search/Coil_Packs/ES7536/

AudiTurbo
09-24-2009, 08:00 PM
I have 2 for sale brand new. I got the wrong ones and there the same as the link you posted.
Let me know. 55 shipped

audi til I die
09-24-2009, 08:23 PM
Start by buying new NGK plugs and regapping them to .28 or .26 ( I think, it's been a while)

jpcallmotor
09-24-2009, 08:35 PM
Easy fix, I pocket coilpacks from the junkyards all the time. Have myself a spare set in the boot incase this shit happens to me. [up][wrench]

I have had good luck with the BERU Germany coils, but I have eng. code AEB.

AudiTurbo
09-24-2009, 08:45 PM
I have AEB, but these are for ATW I think

adr3naline fix
09-25-2009, 07:38 AM
I don't have them but everyone is PRAISING these E coils

Wholsea
09-25-2009, 07:44 AM
Easy fix, I pocket coilpacks from the junkyards all the time. Have myself a spare set in the boot incase this shit happens to me. [up][wrench]

I have had good luck with the BERU Germany coils, but I have eng. code AEB.

Beru were the factory coils on the AEB Motors. They were a bit more expensive, and from my understanding have an EXTREMELY LOW Failure rate. I have over 140k miles on my beru coils. Not one has failed yet...knock on wood.

Just don't forget to get the bolts for them, they bolt directly to the valve cover.