Fault codes vs executive v6

[maddhatter44]

Hey I recently got a vs commodore executive after finally learning how to to do the wire bridging to get fault codes this is what it’s throwing out
13: rh oxy sensor
15 coolant temp high voltage
16 () unstable voltage
23 mass air temp sensor high voltage
63 l/h oxy sensor no signal
any ideas weather to replace the sensors or if it’s a wiring thing please just so ya know I’m a young single mum so please when trying to assist use dumbed down talk lol

 

[lout]

welcome to JC
as you dont know how old those codes are
disconnect your battery for 1/2 hour to clear the codes
you will need radio pin number if stock headunit
or you can pull the ecu fuse, but i dont know which one it is
then see what codes come back

 

[maddhatter44]

welcome to JC
as you dont know how old those codes are
disconnect your battery for 1/2 hour to clear the codes
you will need radio pin number if stock headunit
or you can pull the ecu fuse, but i dont know which one it is
then see what codes come back

Was surprisingly able to work out I needed to do that so these codes are after that

 

[lout]

start looking for bad grounds

 

[krusing]

Check your standing battery Voltage,
And your charge voltage also.

 

[losh1971]

The VS has a common problem with bad grounds for the 02 sensors. There is a sticky thread that mentions the fix. If they are still an issue after that then grab new NGK ones from Repco, if they have them, otherwise see what else they have. Whatever you do don't buy an O2 sensor from eBay.

 

[gtrboyy]

start looking for bad grounds

If it were a v8 100% would say single earth wire in harness is common link in those items up at back of head but I know v6 models lol

 

[maddhatter44]

Probably a blonde question but if it’s evident there is a misfire would the be a misfire code or possibly cause by one of these codes

 

[lout]

dont think vs was modern enough for misfire codes
with a high end scan tool could probably do a cylinder balance test

 

[maddhatter44]

So if there was a misfire could it come up these codes or visa versa