I have a Plx M300 Tuner Edition and was wondering what the expected lifetime is on this 02 sensor is.. I have had it 3 years and don't run any crazy fuel or anything like that.

It displays narrow band fine which is weird, although the way I have it connected is narrow band simulation is derived from the wide band signal, both of those wires are fed into the ecu.

I need to run a full tank of gas and figure out if gas mileage is an issue as this is something I noticed on the end of the tank I am currently running.


I also notice that I add fuel to my low cam fuel map and AF does not seem to turn rich its really strange!

anyone have any good/funny/weird ideas for me to troubleshoot?

Thanks!
--Aaron

 

If you have any doubt, just replace the sensor, they aren't that expensive for the peace of mind.

 

How many miles are on it??? 3 years means nothing ... If you've been running a reasonable tune and unleaded gas it should run 3 years just fine.. If you're running it rich as hell..or any leaded fuels I'd not be surprised to see it last only 1500-5000 miles...

 

It richer then 13.0:1 under wot and its not leaner then 20.0:1 under decel .... its just strange not sure what the deal is..

I increase fuel and AF doesnt seem to change, although in the morning it shows rich sometimes, its almost like something is wrong with the fpr.... actually is that it? how do you even test that