Just picked up an 03 Turbo with Aero Kit and X50 package and when I started it up today it threw these codes. I have had it about a week and half and driven it a bit and this is the first issue.
Car has 146k miles (highway miles as it was a commuter car for the 2nd owner) and it has had a good amount of work done 3-4 years ago (a few thousand miles ago)
The codes are:
P0492
P0300 Misfire detection (total)
P0306 Misfire, Cylinder 6
P0303 Misfire Cylinder 3
According to the records, the car had plugs and coils (997) replaced less than 3k miles ago. But does not look like it had the spark plug wires replaced...
It seems a lot of people have had success changing plugs/coils/wires, and I guess I should start by trying the wires?
What is the P0492, that seems like a generic one but it says refer to service manual (using the foxwell reader).
The car seemed to run just fine, but every now and then there was a sound, coming from the right side (passenger side) that almost sounded like a motorcycle or car revving. I thought it was someone else a few times, but then I heard it when there was no one else around.
