I’m working my way through the fault codes recorded and down to 5 of which three are communication errors in the instruments section, lost communication with transfer case, ride level and parking assistance modules. Are these anything to worry about? Everything seems to work as it should I’ve not tried all the off road settings, hi low range engages without any error messages.

Steve Steve

2005 2.7 TDV6 HSE, ongoing project.
1998 Volvo V70 R auto FWD, mothballed future project.
1999 BMW Z3 (owned from new) garage queen.

You can ignore U codes

Cheers Andy, the only other one of concern on the engine is cylinder 4 balance fuel trim at maximum, have researched this and possible things are air leak, fuel leak or dodgy injector? anything else I should look for?

Steve Steve

2005 2.7 TDV6 HSE, ongoing project.
1998 Volvo V70 R auto FWD, mothballed future project.
1999 BMW Z3 (owned from new) garage queen.

you should read the injector offsets (at idle) and post them up

UPDATE, this error has gone away keep my fingers crossed it stays that way

Steve Steve

2005 2.7 TDV6 HSE, ongoing project.
1998 Volvo V70 R auto FWD, mothballed future project.
1999 BMW Z3 (owned from new) garage queen.

This code has popped up again on my routine code check, cleared it and went for a long run yesterday and it’s not popped up again. I found out how to access live data on my Icarsoft code reader which is quite extensive these are the live offset readings on a cold engine and after about 15 minutes running.

I took a mid average as the figures were changing.

Cold
Injector
1 - 895
2 - 1275
3 - 930
4 - 987
5 - 860
6 - 1224

After 15 minutes running
1 - 990
2 - 1055
3 - 955
4 - 994
5 - 893
6 - 1213

From what I’ve read all are within tolerance only 2 and 6 being a tad high so I’m thinking nothing to worry about here? Steve

2005 2.7 TDV6 HSE, ongoing project.
1998 Volvo V70 R auto FWD, mothballed future project.
1999 BMW Z3 (owned from new) garage queen.