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Random Misfire Codes and P1694

Desert4x4

NAXJA Forum User
Location
Phoenix
So, I have no symptoms other than check engine light and codes that come and go.
Jeep runs great, definately no noticeable cylinder misfires, starts perfectly, idles pretty well. Gauges always work.
P0300, P0301, P0302, P0303, P0304, P0305, P0306 (Cylinder misfires....)
P1694 (CCD bus line open)
P0442 ((EVAP leak small) unrelated I imagine)

99 XJ AW4 NP242

I've already replaced the CPS 3 times (not Mopar brand, Autozone brand), cam sensor twice, TPS twice, IAC, oxygen sensors, MAP sensor, ignition coil, plugs, wires, cap, rotor. i've cleaned most electrical connectors under the hood and the troublesome drive side kick panel enromous plug, and the TCM plug.

Codes still persist. Jeep still runs great. Am I the only one?:gonnablow
 
You don't have a lean code do you? A vacuum leak can sometimes cause a misfire. Do you have access to freeze frame data? That could shed some light on the problem

Sent from my MotoG3 using Tapatalk
 
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