Alternative for coil packs..

[quadtro]

I'm getting multiple misfires on all my cylinders, forgot the codes but have cleared them 3 times already and they all re-appear. Question is what's the difference between the Beru (believe this is what's on the car now) and the Meyle? Also what generally causes these coils to go bad? There's also a boot for the plug/coil on ECS that's alot cheaper if I could go that route.. Also any aftermarket coils, like the "under development" coils from 034. Rather spends on upgrades if I had to buy replacements.

Thanks.

[BITRBO]

I'm getting multiple misfires on all my cylinders, forgot the codes but have cleared them 3 times already and they all re-appear. Question is what's the difference between the Beru (believe this is what's on the car now) and the Meyle? Also what generally causes these coils to go bad? There's also a boot for the plug/coil on ECS that's alot cheaper if I could go that route.. Also any aftermarket coils, like the "under development" coils from 034. Rather spends on upgrades if I had to buy replacements.

Thanks.

Beru is OEM, and Meyle is essentially the same thing (but much cheaper) with a different name printed on the top. If you're misfiring, I seriously doubt it's the boot, but you never know.... The one thing I've learned with this car, is it's usually not the cheaper part that you're hoping is the problem I looked into upgraded/aftermarket packs, and get ready ($$$$$$$$$$)!!!

I might have a set of either a) used stock coil packs (25k miles), or b) very slightly used Berus (500 miles). I've been having rough idle and misfires accross the board for a long time, and bought all new cp's thinking it would help. I'm almost ready to conceed that it wasn't the problem

PM if you're interested.

edit: had the brands mixed up; Meyle is cheaper.

[hodan]

Coilpacks are not usually "upgraded". Stock is fine. FINE. I don't know what ruins coilpacks, mine are all stock with 195k miles. You should log your car and try switching out the coilpacks on the misfiring cylinders with the good ones. Problem diagnosed. Good luck.

[quadtro]

Thanks for the replies..

Hodan:
When I vag the car all cylinders are misfiring. So I doubt swapping them will do any good.. I've cleared the CEL since and it hasn't returned but if it does that'll be the 4th time and I'll like to fix it before winter hits.

Thanks.

[BITRBO]

you really need to see what codes you are throwing, otherwise we're all just speculating here... It could be any number of things really.

[RolledMySTi]

Have you pressure tested? This sounds like a boost leak more than bad coils.

[gmann]

Have you pressure tested? This sounds like a boost leak more than bad coils.

x2

or are your o2s shot, or is your air intake sensor shot, do you have a dirty fuel filter, etc etc etc etc, I could go on for forever. What are the exact codes and does it do it at only idle or does it do it across the board? And another thing, don't upgrade your coil packs. The stock ones are plenty powerful enough to put out plenty of juice.

[quadtro]

O.K, the CEL came back... This time no misfire, but the following:

17544 Bank1 system too lean (add)
P1136-35-0
17546 Bank2 system too lean (add)
P1138-35-0

WTF.. This also happens on startup only, not while car is running. Also car runs fine with the CEL, no stutter or flat spot.

[Dowskeet]

Spark Plugs??

[quadtro]

Spark plug has already been changed, that was the first thing I did when the CEL came on.. Thought it might be a vacuum but my boost guage shows vac the same as before the CEL came on..

Car is stock except:
darin intake
forged 007 bv
blitz guage

[gmann]

Does it shudder at all at high load? IE clear the code after the car's been started and then go tromp on the car.

[quadtro]

Car runs fine... No bogs/shutter... I'm actually boosting to bout 6lbs as well.

[megafreakindeth]

Coilpacks are not usually "upgraded". Stock is fine. FINE. I don't know what ruins coilpacks, mine are all stock with 195k miles. You should log your car and try switching out the coilpacks on the misfiring cylinders with the good ones. Problem diagnosed. Good luck.

coil packs get overheated when the plugs are allowed to wear out. it increases the gap forcing the coil to use more energy to bridge the gap which then increases the heat in the coil itself. change ur plugs every 40k and this wont happen, change the boots every 80 if you can since they burn out.
ive got a whole set of bmw coils with blue burn marks on them from the oil baking inside the coil pack on 90,000 mile plugs. the boots are visibly corroded on the inside, its all green and white powder.

another failure is from the 10k oil change causng the valve cover to leak into the plug hole, this is part gas mostly oil and causes the coil packs to 'push up' and that then causes the coil to use more energy to bridge the airgap between it and the plug burning it out. we dont have that problem, just 12 more screws to undo to get at the plugs.

[auditec]

Did you check the ignitors on the airbox?

[mholme]

Did you check the ignitors on the airbox?

It's been almost a year since he posted this thread...so I hope so

[Rated S]

http://www.optionsauto.com/prodinfo....OKD-PD6002101R

[complacentsee]

http://www.optionsauto.com/prodinfo....OKD-PD6002101R

Have you seen the plots for thier abilities? I know people have used them with success. I'm still a skeptic, the plots didn't do it for me.

[Rated S]

Have you seen the plots for there abilities? I know people have used them with success. I'm still a skeptic, the plots didn't do it for me.

Quite frankly I would never pay $1,100+ for coilpacks on a car like this.

[complacentsee]

Quite frankly I would never pay $1,100+ for coilpacks on a car like this.

I heard of some one with an all road stage III going with them because he couldn't get past a certain range without them. I still don't believe it. But my eye ball math looked like 40% increase. It would be easier/cheaper to modify the driver ciruits and hope they don't die.


I don't know how any one would pay that, thats merc style monies.

[megafreakindeth]

what i think theyre doing is quite common, especially with american cars. what you do is match the output of each coil so theyre all the same. there are probably variations of 15 percent or more in each coil. also theres response time and resistance and all this crap. an old american motor like a 3800sc runs really well when you buy matched coils.

now im also sorry for reviving a dead thread, i was looking through a few windows at once and thought this was the most recent stuff.

never the less there was a write up on how to remove the ICMs and replace them with the newer style coils which apparently put out more power letting you run larger plug gaps. this was for a 1.8t but the system is basicly the same. i have the link at work so ill post it up but if anyone knows if this is doable on a 2.7 for sure please let me know. i believe the swap was to bypass the aeb/apb icms and coils(they say S4 on them) and replace them with awm coils(still bolt down but the electronics part is white and smaller). this will cost alot less than the 1100$ set, reduce maintence, and greatly increase mpg/power/smoothness so if it works its a win win for all.

[complacentsee]

^^^ That is exactly what i was talking about. Didn't know there was a direct fit module and figure that ICMs would need to be soldered ha.

This however is only a good idea if your comment on driving the coil packs to hard above is a bit of a strech IMO.


That part that always made me think about the other coil packs listed obove.

1. Your not changing any thing with the ECU signal to the ICM.
2. Your not changing the ICM.

Given this, your not going to provide any additonal engery to the coil pack. I highly doubt that this company can build coil packs 100% more efficient than bosch or whatever makes OEM coil packs.

[megafreakindeth]

http://www.audigeeks.com/forums/inde...1cc&topic=3181

k its not awm its atw but other than that i was close. if it works for an aeb i dont see why it wouldnt work for apb. anybody do this?

[megafreakindeth]

well i dont know what kind of power output range they have but theres always tolerances so lets say the range is 3-5volts that audi deemed acceptable for production(its a made up number). that means that any coil you get will put out a number in that range so theres a chance for high cylinder variation. that factored with the differences in fuel injectors and location from the throttle body can really change things. what the other company does is sell you 6 coils with the highest output voltage possible. this should increase efficency alot unless you got lucky and had good coils to begin with.

the link i posted earlier uses more powerfull coils that dont need the ignition amplifier. you can then run a colder plug and or bigger gap and reap the benifits

[NOTORIOUS VR]

http://www.audigeeks.com/forums/inde...1cc&topic=3181

k its not awm its atw but other than that i was close. if it works for an aeb i dont see why it wouldnt work for apb. anybody do this?

That would absolutely work... I was thinking of switching to tho's coils myself, just for the fact that they're stronger and cheaper! One of these days I will make the change and post up a DIY

[megafreakindeth]

if ti works for an aeb i couldnt see why it wouldnt for us. i wonder if we can use the orange coils from a 3.0. either way, selling the icms and the oem coils will basiclly make this mod pay for itself.

[JaredVL]

people including me ran those back in the day, no change, same results as stock, they are horseshit

[complacentsee]

The only way to up the system is to up the primary current (only way to do this is up the primary voltage). Doing that will simply cause more of our coil packs to fail.

The real questions is whether the coil packs fail on the primary side or the secondary side. I really don't think the oem packs really fail that much. It is probabaly just the only time you hear them mentioned is the failures.

[Rated S]

people including me ran those back in the day, no change, same results as stock, they are horseshit

As in the Okada Projects Coilpacks or the ATW coilpack/ICM delete?

[BumbleBee]

I run the 034 MSD coil Packs with independent wires so far soo good

[STG3_00_s4]

Any help would greatly be appreciated..


http://www.audizine.com/forum/showthread.php?t=302342