multiple codes being thrown please help
 

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!
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