Oh crap. What should I do?

[tonycarreon]

have you ruled out the engine mount?

[Mike_Yi]

Originally Posted by tonycarreon

have you ruled out the engine mount?

Well, I kinda did automatically because it didn't seem related to torque. If it were an engine mount, I'd think that torque would cause the engine to rotate (equal and opposite to crank rotation) regardless of rpm. The rotation of the engine would cause some kind of vibration-type feeling.

[Mike_Yi]

Does anybody have any suggestion on how I can troubleshoot the problem and identify what's causing it?

[Jake Raby]

do you have a durametric unit??

[Mike_Yi]

Nope. Wish I did though.

[texomawaves]

Here's what I did recently... I bought the Durametric, and showed Cyl misfire #5. So... I swapped coil pack between cyl 5 and 6 and guess what??? The next CEL code threw a Cyl misfire in number 6. Bingo!!!

So...

1. read your code on the Durametric
2. swap coil packs on adjacent cyl AND...
3. swap plugs on OTHER adjacent cyl
4. clear the Durametric code
5. drive car, run engine up to the 4k+ RPM
6. let engine cool, drink a beer (or two)
7. read the code again and see which cyl the problem follows
8. order parts
9. take girlfriend out to dinner

This procedure took me an hour or so. I'm assuming you have ignition issue, and guessing a fouled plug. My coil pack issue wasn't rpm related, it was intermittent. I hope this helps.

[Topless]

"Does anybody have any suggestion on how I can troubleshoot the problem and identify what's causing it?"


Jack up your car, pull the spark plugs and inspect the plugs and coil paks. The misfire cyl spark plug tip will be discolored (usually black or wet) compared with the other 5. Inspect the coil pak on the offending cyl and look for cracks or signs of arcing. Replace failed parts. Easy breezy.

The Durametric is nice but any simple $60 OBDII reader will also give you misfire codes that identify which cyl. is the problem.

[yelojkt]

I owned my NB for about two years before I bought Vag-com. Durametric will be one of the first tools that I buy most likely before I buy my 986. Most certainly if it tells me that rev history on the engine.