simmer

of cylinders 1,3,4. Codes are 300 301 303 and 304. My mechanic said diverter valve.Any ideas out there??

thanks

200o/nav/cold package 120000 km's

Sky1904

has happen to me on more than one occasion...

skiracer

Since all the misfires are in the same bank, it could be a bad power output stage.

Younger

Which shop you been usihng these days?

BrianC72gt

If you are driving a 2000. then you don't have a POS in the ignition so scratch that idea. Are you getting codes through Vag-Com or a generic scanner?

Change your plugs if they are overdue. Keep an eye out for oil in the plug well as this can lead to misfires and is caused by a leaking cam cover gasket - not a big deal. Also, move the coil packs of the problem cylinders to different spots. You'll be removing them anyway to change the plugs. If the codes go away: worn plugs or oil leak. If the codes move with the coils...bad coils 22 dollars each. If you still have a misfire, then do a compression test. I would expect a skipped tooth on the timing belt or any kind of vacuum leak like the one your mechanic mentioned to effect the entire bank, but cylinder 2 throws no codes?

Also check your cowl area for water on the passenger's side. It can collect water and make the ECU behave badly. Mine was a worst case scenario with a torrential downpour/flood that led to all kinds of mayhem including three fried coil packs (I changed them all for $180).


(edit: dodgy typing on a pda last night)

simmer

The shop I think you recommended Younger

simmer

I think plugs would be the way to go. I had the car serviced at the Dealership and the tech said I had the incorrect plugs in. I think they're Bosch. I've read that these cars are particular to OEM plugs.

KYNZ

and clear your codes with vagcom and you should be good. if not...report back in a few days/wks when the codes come back

Younger

Andy's a great guy and very knowledgeable...let me know how it turns out!

sridhar

I usually run two 12gal bottles instead of one 20gal one.