Power loss, changed coilpacks, no improvement?

[crowncitycorey]

So this morning on the freeway on the way to work, I felt a significant power loss. When I got off the freeway and got to a stop, the car was idling like shit. Shuddering and bopping around.

From everything I have read here, I assumed it was coilpacks. So, I got two new coilpacks from the dealer (Part# 06B-905-115-R). I went throught the replacment DIY from Audiworld, engine running (musical coilpacks) popped out the coilpacks one by one and with each one, the motor performance never significantly dropped.

Now, I removed each individually and replaced with the new one, starting the car after replacement, to see if I could find the culprit. A change in anyone of them did not make a difference. Is it possible that I blew 2 of them?

Lastly, popped out two at a time and replace them with new one. No difference.

The coilpacks I have in the car already are the "R" version which I understand are the newest and are more reliable that the originals.

I am at my wits end. Am I doing something wrong, or is something else wrong with the car?

Any help is appreciated.

[AudiA4Turbo22]

^^ VAC leak, bad one i had the exact issue, the car would rev a little by itself at idle, and on the freeway it would take me forever to hit 65!!!! it's a VAC valve don't remember which one though!

[crowncitycorey]

^^ VAC leak, bad one i had the exact issue, the car would rev a little by itself at idle, and on the freeway it would take me forever to hit 65!!!! it's a VAC valve don't remember which one though!

Hmmmm...........my boost gauge vac hose is pretty taught since I ran it from my Podi through the wheel well and attached it near the front of the car.

Maybe it came loose?

[AudiA4Turbo22]

^^ could be! the dealer charged me $255 to fix it, exactly what happened to me!

[crowncitycorey]

Since the boost gauge is still functioning, and the connections at the manifold are solid, I am going to assume it't not that connection.

Anybody got ideas where I should look?

[AudiA4Turbo22]

i posted a diagram last week with all the hoses for VAC under the hood with names and part numbers! hold on i'll post the thread!

[AudiA4Turbo22]

here u go:

Have a VAC leak use this diagram!

[crowncitycorey]

here u go:

Have a VAC leak use this diagram!

I appreciate that, but LOL!, It looks like I am calling Ingolstadt West!

[crowncitycorey]

In it's present condition, is my car driveable? At least to the shop.

Does anyone think that I could do more damage driving say, 20+ miles?

[AudiA4Turbo22]

^^ i drove mine for a week before i fixed it, i think it'll just have bad fuel economy!

[ScaryGary]

I had a check-valve crack at the radial seam in the plastic. It was up near the firewall. The car ran really rough at idle, so i popped the hood and started poking and prodding, and the check valve broke in half when i wiggled a line. The car revved slightly, sputtered and died. It wouldn't restart. I superglued that beezy and it's been fine for a couple thousand miles.


anyway.... it does sound like a vac leak if you replaced the coil packs.

[old guy]

I believe ScaryGary is talking about this: Clicky click Had the same thing happen. Fix it with a little super glue.

[crowncitycorey]

So I had someone check the car for codes, and I have misfires on all 4 cylinders, an ECT Sensor Code, o2 Sensor Code that it what the guy remembered off the top of his head as he was no longer at the shop. I am sure that there was also one for my left headlight being out and a taillamp (fog one).

Since the ECT is a warranty issue with Audi of America. I am gonna take the car to the dealer on Monday. Maybe I can get lucky and some of the other things being warranty related. I had also read somewhere about a recall for the fuel pump on '03 1.8t's. Anyone else had that? Could it have anything to do with the current condition?

I am a little concerned about taking it too them though since I am chipped, with cat delete and such. Anyone think they will flag me and void any warranties?

[crowncitycorey]

Update: In case anybody care

The car is in the trusted hands of our forum advertiser, Penske Audi in West Covina. Nice Dealership! Good Coffee and friendly folks! Thanks Jason!

[crowncitycorey]

I believe ScaryGary is talking about this: Clicky click Had the same thing happen. Fix it with a little super glue.

Hear back from dealer and this is exactly the issue. $30 part, $200 labor

I am happy to have the issue located and be relatively minor.