Hello friends!

I have a 2002 S-type 4.0 which just had both PCM relays changed at the dealership.

I drove the car for one day and the check engine light came on. I hooked up the code reader and got the following codes:

p0302 - misfire cylinder 2... ok
p0300 - multiple misfire... ok
c1805 - something to do with abs?
u1262 - no clue
c1963 - stability control inhibit warning... whatever that means

The car shudders at idle and under heavy acceleration/load. If the codes were just for misfires I would simply change coils plugs etc, but the fact that there are these other mysterious codes as well I wonder if the problem is a sensor somewhere? Something obvious I'm missing perhaps?

Any help is greatly appreciated.

 

Your shuddering at idle and on the highway is due to the P0302 code (passenger side - second coil from front of engine) you should make sure the connector to the coil is on and if so - replace the coil. Any oil on the coil boot will require the cam cover gasket and associated O-Rings to be changed. Once you fix the P0302 the P0300 should go away as well (unless there are other coils misfiring intermittently) As far as the other codes - tackle them after rectifying the coil misfiring issue

 

All codes are in JTIS, free download

Make certain battery is excellent rather than old and tired or expect false codes.

 

Listen to Abonano!
Anyone who has 215K miles on a Gen I S Type really knows his stuff!

Oops! Now he is up to 219K miles. Keep them rolling!
.
.
.