multiple error codes

[kgh3699]

So my boat mechanic pulled the following codes from my 2019 Volvo 4.3 and isn't comfortable working on the engine. Any idea of the cause for this many codes? Engine goes into safe mode at 1000 rpms after about 15-20 minutes,

- Lambda/o2 sensor Bank1. Control is closed loop. Learning process the value exceeds the superior limit
- The oil pressure is too low
- Communication error CAN /Rx Tx
- Oil pressure sensor low pressure stage 1

 

[jimmbo]

Oil is too low a Viscosity, or diluted with fuel?
Corroded/Dirty Connections can cause the Com Errors, as well as damaged wiring.
If engine is burning the Oil, it will gum up the O2 Sensor

Carbs and Mechanical Advance Distributors, so much easier to diagnose than the VooDoo Computer Controlled System. I don't blame your Mechanic, he knows a Money Pit when he sees One, but he will be blamed for the Costs

 

[Donald0039]

I would start with a mechanical oil pressure gauge and a thorough cleaning of the connectors involving the ECM and sensors connected to it.

 

[tpenfield]

So my boat mechanic pulled the following codes from my 2019 Volvo 4.3 and isn't comfortable working on the engine. Any idea of the cause for this many codes? Engine goes into safe mode at 1000 rpms after about 15-20 minutes,

- Lambda/o2 sensor Bank1. Control is closed loop. Learning process the value exceeds the superior limit
- The oil pressure is too low
- Communication error CAN /Rx Tx
- Oil pressure sensor low pressure stage 1

Got any of the fault numbers that go with those 'codes'?

 

[kgh3699]

Got any of the fault numbers that go with those 'codes'?

 

[kgh3699]

Yes see attached