I have a '98 Pontiac Grand Prix (better known as our Grand Pile). The last
few days it has been hard to start and runs rough when it does. At some
point, it smoothes out and runs fine. I've scanned it and received the
following codes:

P0403 - Multiple Random Cylinder Misfires
P0303 - Misfires on Cylinder 3

Any clues as to the most common cause of these errors? Faulty injector or
coil pack? If so, any clues as to how to zero in on the problem?

Thanks.....



Wrong newsgroup.

Now if it were a question concerning the sound system in your '98 Grand Prix,
you might get some advice.

I know Jaguars pretty well and while there is no computer on a '68 XKE, I would
change the plugs, plug wires, and distributor cap.
Richard H. Kuschel
"I canna change the law of physics."-----Scotty