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Discussion Starter · #1 ·
P0365
P3400
P0842
P0847

I suspect a battery or charging system problem because there are multiple sensor/solenoid/switch errors in seemingly unrelated systems.

Does this make sense?

Is there anything to check before replacing battery? I want to avoid shotgunning.

Thanks in advance!

Matt
 

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These are some major big codes here. Before replacing big parts, there is a possibility that a weak power supply can trigger some of this. Assuming battery and alternator is good (check), a poor ground could be the cause. I would examine the ground cable/straps. Clean contacts/Replace if needed.
  • Battery to Chassis
  • Chassis to Transmission
  • Chassis to Engine
If this is ok. You'd have to figure out is the cam position sensor is the problem or if the other code that deals with the oil pressure switch on the drivers side head is the culprit, or both. Hmm. The 2 transmission codes I'd save for last.
 

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Discussion Starter · #3 ·
That's good advice, thanks! I was thinking similarly that some sort of electrical supply (or ground as you said) might cause the multiple errors. I'll take a look.
 
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