[jdhansen0330]

Yesterday the engine died while going down a steep road. When I restarted the engine the check engine light came on. When I checked the codes I received the following list: P2302, P2305, P2308, P2311, P0340 and P0365. It seems odd that all 4 coils and both camshaft sensors would go out at the same time. The engine run fine, it never went into 'limp mode'. Any suggestions?

[CJ7-Tim]

Always start your diagnostics and repairs with the lowest numerical P code.

Often a P code failure causes strange engine performance which influences the ECU or gives faulty feedback data to the ECU and the ECU doesn't have the ability to determine why it is receiving feedback that is out of proper specifications.

Fix the true cause of the fault code and the faulty data is no longer present. The other fault codes should clear by themselves and/or will not return if you reset them.

[1982cj8]

It sounds like you have more of a voltage supply problem, look at the supply for the items you have the codes for, like an ASD relay, or possibly a ground problem. The coils ground through the pcm, the sensors send signals to the pcm and also ground through the pcm.