1996 Range Rover P38A
No I havn't, but I have had them out. I did youtube about cleaning o2 sensors and I do have a sonic cleaner, but I chickend out.Have you cleaned your O2 sensors?
I thought there was a high probability I'd ruin them so put them back in.
I'd also been warned about aftermarket sensors, just don't buy them and the NGK's are £100 a piece.
But remember, my issue was only on startup, as soon as we were on closed loop everything was fine, so I had dismissed sensors by and large.
When I found the fuel pressure regulator leaking I thought I'd found it, but no.
However, the Evap purge valve is looking good. With the valve stopped off the trims have returned to 1.25 and havn't moved for 5 starts now, it's looking good.
If I get time I'll pull the purge canister off and see if it's full of fuel.