Coil Pack Dilemma OE Or Updated 2.0T Conversion?

[sidewayzgt]

My S4 had a misfire today while getting smogged which triggered its CEL. It said that the misfire was from bank 4. The tech told me that it was probably due to the heat and I agree. Anyway, I am going to give it a tune up and am not sure if I should replace the coil packs with OEM coils or the updated ECS 2.0T kit that I am hearing about? Is there an advantage to the ECS kit for stage 3 performance? A performance shop told me that I should stick with OEM no matter what. Anybody have experience with this? Has anybody used any other brands?

[Timtheguru]

Try the FPR first. (trolling all threads with this, it's a $30 Bosch part)

[getslideways]

Swap coilpack 4 (if memory serves that the one towards the front of the car on the driver side) with one from the opposite bank, then after driving around, rescan. If the misfire followed, replace that coil, if it stayed on cylinder 4 then you might consider when was the last time you changed your plugs? And with what? If its been a long time, and they are due anyway, toss in new plugs with the current coils and see what happens. No sense in replacing things if you dont need to, and tossing money blindly at a problem.

Try the FPR first. (trolling all threads with this, it's a $30 Bosch part)

It would seem unlikely that a faulty FPR would only cause a misfire on one cylinder.

[y3ti]

can the fpr cause a misfire in only one cylinder?

there are a ton of threads on this coil conversion, read up.

Only positives are cheaper coil replacements in the future, easier access to the coils and spark plugs, and getting rid of the troublesome ICMs. They wont give you any gains.

I think it could be labeled as an aesthetic upgrade more than a performance upgrade.

I went with 2.0 coils...

[Audimilo]

swapin coil packs to diagnose and then replacing the pack that is faulty is always the cheapest route.


or, go 2.0 coils and forget it. seriously happy with mine.

dont forget your plugs too. happy hunting.

[zatch_303]

Audimilo, from a local CO resident, don't sell your avant! it's too clean, you will regret it and you said yourself in the for sale ad, so much car for the money ;)

on topic, if you have the funds go 2.0 coils :))

[Timtheguru]

Swap coilpack 4 (if memory serves that the one towards the front of the car on the driver side) with one from the opposite bank, then after driving around, rescan. If the misfire followed, replace that coil, if it stayed on cylinder 4 then you might consider when was the last time you changed your plugs? And with what? If its been a long time, and they are due anyway, toss in new plugs with the current coils and see what happens. No sense in replacing things if you dont need to, and tossing money blindly at a problem.



It would seem unlikely that a faulty FPR would only cause a misfire on one cylinder.

I did on cyl 4.. depends on how it is faulty I suppose. I bet he's getting missfires on more than just one cylinder though.

Anyway, it's 15 years old now, might as well replace it. If it aint broke don't fix it comes to mind, then you still have your old one to swap back in.

Also, yes swapping coils is a great way to diagnose a single cylinder.

[treysgreen]

In case you decide to go with the coil pack conversion. I have a complete set of the splice in plugs with the OEM Toureg coil pack spacers for sale.

[vavJETTAw36]

Don't do either. Go rs6 coil conversion. They seal to the VC just like oem. More expensive coils but are said to be more reliable than the expendable 2.0 coils

Btw I didn't read the posts just the title :)

Sent from my iPhone using Tapatalk

[julex]

Neither, RS6 coils man. They have all the upsides of 2.0t conversion without any downsides as they actually bolt to block and seal the coil holes unlike 2.0t with adapters. I had persistent problems with water getting into two front plug holes when it was raining with 2.0t conversion. Plus, with a bolt on of RS6, you have a better heat sink interface between coil and head cover which will prevent coils from overheating as it is common with "in the air"
2.0t conversion.

[treysgreen]

Personally, I went with the R8 coil packs.

[julex]

Personally, I went with the R8 coil packs.

R8 is identical to 2.0t, design form considered and not taking some unproven hear say about changes in windings under consideration. Same problem with not having proper seal between adapters, coil and head covers.

[Timtheguru]

I ran 2.0t coils, R8 coils, and finally landed on the RS6 coils with brand new allen hardware and gaskets. They aren't that expensive, ~$30 each.

[Monty23]

I have been having an issue with my #4 spark plug cracking recently. 2 Plugs have failed in this exact way in the past few months. I have payed extra special attention not to induce any side loads in the plug when properly torquing the plug on this latest one and it hasn't had an issue yet. Just something to look for:

[christianb5s4]

I ran 2.0t coils, R8 coils, and finally landed on the RS6 coils with brand new allen hardware and gaskets. They aren't that expensive, ~$30 each.

So to confirm, the RS6 coil packs are completely plug and play?

[S4gasm aka LOTR]

When I did my conversion, I found 3 of my stock pigtails like this. Cracked, exposed wire right before the stock connector.
Something to look for as well, certainly could have caused some of my misfires, and not so much the old coils/icm's themselves.




- - - Updated - - -

So to confirm, the RS6 coil packs are completely plug and play?

not to your factory connectors, you still need the correct pigtails, and to delete the ICM's. The RS6 packs just eliminate the need for adapater plates.

[rippin'av]

not to your factory connectors, you still need the correct pigtails, and to delete the ICM's. The RS6 packs just eliminate the need for adapater plates.

Would love to see a DIY on this. Do you have a link to one or is this essentially the same as 2.0 conversion minus 2.0 coils? Haven't seen much info on using RS6 coils before...sounds interesting.

[audacity]

also in for s6 info, i can't stand the idea of using adapters

[Monty23]

Would love to see a DIY on this. Do you have a link to one or is this essentially the same as 2.0 conversion minus 2.0 coils? Haven't seen much info on using RS6 coils before...sounds interesting.

Its the exact same wiring as if you were using 2.0 coils. You just get bolt down coils (like factory coils) vs. the push in 2.0 type (which require the adapter plates).

[S4gasm aka LOTR]

guys there's tons of threads on this conversion, do i need to link you to google? lol
http://www.audizine.com/forum/showth...-0T-Coil-packs
http://www.audizine.com/forum/showth...-Solder-method

Alternatively, if you don't want to cut/splice your ICMs, there is a fellow on here who makes/sells the ICM delete harness, simple plug and play.

Then you just have to wire in the 2.0t pigtails.
http://www.ebay.com/itm/181785592036...%3AMEBIDX%3AIT

[Breppinq]

I also had the 2.0 conversion and water would leak into 5th and 6th because of the adapter plates. I also had the CEL come on for the coils all the time although the car ran fine and the coils were brand new, swapped, used, old it didn't make a difference. Needless to say i went back to stock and I'll probably end up going rs6 when one of these fail.

[wbrunner23]

My 2.0 coils have been running for >2 years, ~30k miles, and a cross-country trip without any issues. I'm using Toureg adapters - maybe being plastic they are better with heat (less conductivity)? Toureg adapters definitely don't seal to the head, but I haven't had any issues with stuff getting in the spark well.

[1illA6]

So to confirm, the RS6 coil packs are completely plug and play?

They are plug & play if you already have a 2.0 kit. So if you're wired already or have the kit & didn't want to use the push down style coil packs. You could source RS6 one's & basically have a bolt down style like OEM. Which is better because water & crap doesn't fall into the valve cover like Julex mentioned. This is basically the route I will be taking. Replacing my push downs with RS6 ones.

Would love to see a DIY on this. Do you have a link to one or is this essentially the same as 2.0 conversion minus 2.0 coils? Haven't seen much info on using RS6 coils before...sounds interesting.

https://store.034motorsport.com/coil...ire-coils.html

[rippin'av]

Great info! thanks all

[Audimilo]

Audimilo, from a local CO resident, don't sell your avant! it's too clean, you will regret it and you said yourself in the for sale ad, so much car for the money ;)

on topic, if you have the funds go 2.0 coils :))

Thanks Zatch_303. I'm strongly considering keeping it. I know that if i sell it i'd likely have to just build another someday. Stage 3 B5 Avants are like the mafia.. blood in blood out.

[Timtheguru]

Thanks Zatch_303. I'm strongly considering keeping it. I know that if i sell it i'd likely have to just build another someday. Stage 3 B5 Avants are like the mafia.. blood in blood out.

We didn't have the best start to our relationship, but definitely keep it. I've been around long enough to know you'll buy another one in a year, regretting selling the first clean one you owned. :)

[sidewayzgt]

Wow, I forgot to subscribe to my own thread lol.. RS6 Coils are the way that I am going to go. Ok, couple of questions that are probably already answered in some of the threads but I somehow missed:
Will the 2.0T pigtails will fit the RS6 Coils? With this conversion, can I still delete the ICM's? If so, what connection do I need for it?

[Timtheguru]

Wow, I forgot to subscribe to my own thread lol.. RS6 Coils are the way that I am going to go. Ok, couple of questions that are probably already answered in some of the threads but I somehow missed:
Will the 2.0T pigtails will fit the RS6 Coils? With this conversion, can I still delete the ICM's? If so, what connection do I need for it?

Everything you see here: