2001 S80 Cylinder layout? code P0306

johnboneske · Post by **johnboneske** » 21 Jul 2014, 11:49

Does someone have a diagram or layout of the cylinders on a 2.9 S80 non turbo? I keep getting a P0306 code and it runs like crap. I changed the plugs, and swapped #5 and #6 coil packs around(i think) and it still shows a P0306. If standing in front of the engine, which is #6?? Did I switch #1&2 and not #5&6?

THAI UNG · Post by **THAI UNG** » 21 Jul 2014, 14:57

If you stand in front the car looking at the engine :#1 cylinder is the last one on left hand side and #6 is the last one on your right hand side.Hope it helps...

Post by **precopster** » 21 Jul 2014, 19:30

Did you check the spark plugs while you were there? Could have worn or fouled electrodes causing same problem.

johnboneske · Post by **johnboneske** » 24 Jul 2014, 09:28

I got it fixed...thank you. Was a coil pack...

Post by **Oly_850** » 04 Aug 2014, 18:15

It's common to accidentally swap the coils for #4 and #5 for eachother. They should face in opposite directions, and while you're there check the ground connections to the cam cover, and the braided flat grounds from the head to the body. They have to clean and tight.

johnboneske · Post by **johnboneske** » 05 Aug 2014, 20:10

I was dumb in my own right and answered my own question after I asked it. I bought a new coil off Amazon and has been perfect since...thanks!