another cel, possible bad coil pack?

[zeonic]

so the other day i was driving down the highway, had my fast in D. i go to accelerate and hit on the gas, my turbo spools up to almost 20psi then all of a sudden cuts out, drops to around 17psi and the whole cycle keeps repeating, the car surges somwhat, feels as if you were peeling out kinda. the first time this happened my cel just blinked while this was going on, so i backed off the gas and the car went back to normal. so i decided to test it again. bring her up to high boost again, and sure enough, same thing happens. this time the check engine light stayed on. from this test i figured out that this only happens under high boost, no symptoms are present until i hit about 19-20psi. the car still drives normal. so i plugged in my vag-com and got two codes, one for myltiple cylinder misfire and the other for cylinder #2 misfire. i have come to understand that the coil packs on our cars are known to be faulty and that this is one of their symptoms. i have recently swapped out my spark plugs for autolite double platinum plugs, so i dont think its them. any input is greatly apreciated.

[lumns]

def coilpak. ur looking at between $30-40bucks each to replace
them


i had the exact same issue. dont push it too much, w. a misfire fuel is still being pushed into the cylinder its just not being burned.

best thing to do after u replace the coilpak buy a can of bg 44k run it through ur system

[Monkey420]

i had same problem with mine, i took it to the dealer it was covered so that was cool, is there any upgrades for the coil packs and is it worth it to buy them....

[zeonic]

the techs at my local dealer are incompetent, to say the least. i am highly disappointed in their attitude towards me and the inability to fix a simple thing like a bad pcv, then have the nerve to tell me that something totally different is causing the problem. im gonna take care of this on my own without those idiots touching my fast. im gonna order me a full set of coil packs from ecstuning, they are the new D revision, so hopefully they should last better then these have. my car is only at 16k and stuff like this is braking. thats crap. the thing that is strange is that the misfire only happens at full boost. not under normal driving. another tuner buddy of mine suggested it could be the head gasket not sealing well and causing other cylinders to misfire, since it wasnt designed to go up to 20psi. any input on this? also how can i tell which cylinder is which? i figure the one thats on the very left away from the battery should be #1 then maybe #3 then #2 then #4 (1,3,2,4)? say as in #1 and #2 will fire then #3 and #4? or am i over complicating it and they are simply in order (1,2,3,4), as in #1 and #3 will fire then #2 and #4? thanks for your input.

[D.Light]

You're apr chipped right? Well I'm fairly certain that they designed their stuff to work with stock parts and not break anything so 20 psi should be ok, as for cyl. order it's probably just 1-4 and they fire 1,3,2,4. if you can find a pic of a stock cam shaft that could probably clear it up a bit more for you, because firing down a line 1-4 wouldn't make to much sense

[zeonic]

ok. just ordered a full set of the new revision "D" coil packs from ecstuning. hopefully they will be here before the weekend so i can swap em in and see if the problem is solved or we have more crap to go through. to make me feel better im gonna pick me up an ar 15 from my boss and go shoot some **** that goes bump in the night. stupid squirells....

[lumns]

yea the order is if ur facing the car 1,2,3,4.

i went to the dealer and paid for them myself. i didnt want to go through the hassle of dropping my car off. when i 1st brought it in, they told me i had a fuel pump issue. talked to the shop that chipped my car. he immediately thought coilpack. they wouldnt believe him, i limped my car to unitronic. checked it out and in 10mins confirmed it was the coilpak. fuel pump my rear!

how much u pay for ur coilpacks?

[zeonic]

the coils cost me $118, plust the $20 for 2nd day shipping. i hope this takes care of the problem.

i know what order the cylinders fire on an I4 engine, i just wasnt sure how they were numbering them. thanks for clearing that up for me guys

[D.Light]

Originally Posted by zeonic

the coils cost me $118, plust the $20 for 2nd day shipping. i hope this takes care of the problem.

i know what order the cylinders fire on an I4 engine, i just wasnt sure how they were numbering them. thanks for clearing that up for me guys

yup

[lumns]

thats as much as i paid for OEM ones. thats 120 for 4 right?

[zeonic]

Originally Posted by lumns

thats as much as i paid for OEM ones. thats 120 for 4 right?

yup, there are 4. they are the OEM VW coils. i didnt feel like doing more research online into the best possible price. didnt want to go to my dealer ither. local autozone dont carry em. ecstuning seemed like a good choice.

[RaidihnGTI]

Sorry to hear about the problem Vad, when did you get vag-com?

[zeonic]

Originally Posted by RaidihnGTI

Sorry to hear about the problem Vad, when did you get vag-com?

just got it last week. if you are in the area and want your drls shut off or some other stuff done let me know

[RaidihnGTI]

Hey Vad, Any update? is your fast running 100% again? yeah maybe next weekend ill drop by.. kinda like the drls though makes my fast have character... but i wouldnt mind having that reverse then the side mirrors go down?? i was heading back to bremerton the other day and stopped by tacoma for some fuel n man, thats the most tuned area ive seen, up here i see M5s and G37Ss' like crazy

[zeonic]

coils should be here tomorrow. so will know then. i think that option can be done i seen it in the long code, but said something about that it only works with memory seats. so i dont know. just have to give it a try.

[lumns]

memory seats....what GTI has electric seats?

[zeonic]

ok. got my coils. put them on and all seems well for now. took her up to full boost and didnt experience any misfires as of yet. so im a happy camper now still pissed that my "06 is having all these issues. my fast is lucky i like him so much

[RaidihnGTI]

Congratz Vad Was it a difficult process? .. better get some gas tonight, supposed to go up again tommorow from some stupid tax law that passed.. so im going right now

[zeonic]

Originally Posted by RaidihnGTI

Congratz Vad Was it a difficult process? .. better get some gas tonight, supposed to go up again tommorow from some stupid tax law that passed.. so im going right now

not at all. just pull out the old ones and put the new ones in. the fact that i dont have an engine cover makes it that much easier. just took an old shoos lace, wrapped it around the head of the coil, rock it back and forth as you pull on it and it comes out nice and easy. im almost full on gas so wont fill up for at least a week if i just drive to and from work.

[lumns]

i would get some bg 44k to clear out the fuel that wasnt burned out when u were misfiring.

[zeonic]

Originally Posted by lumns

i would get some bg 44k to clear out the fuel that wasnt burned out when u were misfiring.

i got some lucas oil fuel system cleaner to get that taking care off. didnt see that bg 44k stuff you are taling about. but thanks for the suggestion