PS where can I get a vaperiser temp sensor for a omvl r90?
Why? Nobody ever fits one even though the option is there. It's only really needed if the ambient temperature gets down to -20 degrees which it won''t unless you live in the Arctic.
0-5v is correct for the TPS but your standard lambda sensors could be either 5-0v or 0-1v. The only sure fire way to tell is by checking the VIN number against the LR parts book (which I have). I suspect you may have the wrong setting. A 5-0v shows 5 volts if lean and 0 volts if rich, a 0-1v shows 0v if lean and 1v if rich. Get the wrong setting and it adjusts in the opposite way to how it should. For example, if you have a 5-0v sensor and the mixture is rich, you'll get 0v coming out. If you have told the Leo that it has a 0-1v sensor, it will see 0v as weak and richen the mixture even further. The default is set by the Leo, it works out what the correct average stepper opening is and sets that as the default. You can manually adjust the starting position by going into the settings and setting the default lock. Put whatever number you want in the box, hit enter and then untick default lock. That will have moved the default but, it will then learn where it wants to be.