Using an ultra gauge or other similar devise has anyone compiled a list of "normal operating range" for the most comon sensors and/or readings?

Is there a good resource for Land Rover's?

It would be great to have a list if possible while trouble shooting code probelms. Rather than searching though lots of threads to find various output ranges.

What are the most commonly used?

02 sensor output
MAF 1
MAF 2
fuel trim

Thanks in advanced, I am trying to learn this so I can better diagnose as codes come up.

 

Would be interesting, but as you know those can vary quite a bit, and the ECU has a built in program to "adapt" to small variations and wear on things like the throttle stop, etc. The Bosch ECU manual gives the thresholds that trigger codes for those devices being out of spec, which may also help.

Of course, engine coolant temp is my favorite.... can't trust those cheap gauges - they spent all the budget on alarm immobilization...

 

Thanks that looks like great info.

 

I think every truck is going to vary to much to really compile that kind of info.
Engine temps should be under 215*F, MAF readings will vary widely, O2's should continually vary from 1.0v to .02v.
TPS, throttle %, timing advance etc. will all vary to much to set a baseline.