Engine on and wideband off, can it damage sensor?
Thread Starter
Teching In
Joined: Sep 2009
Posts: 23
Likes: 0
Engine on and wideband off, can it damage sensor? So I installed a boost, fuel pressure and wideband o2 gauges and thought it would be nice to turn off all 3 gauges if i wanted while driving in certain times (avoid attention and so on) a friend of mine told me that the switch was pointless and that with the engine running the air/fuel gauge has to be on or the sensor will be ruined. Is this true? I tend to have the gauges on most of the time but dont want to risk damaging my o2 gauge if i decide to turn the gauges off
TECH Apprentice
Joined: Sep 2005
Posts: 334
Likes: 1
If you are just killing the gauge display, but the wideband controller is running, you'll be okay. But, do not turn the controller off. You need to keep the wideband sensor itself powered up whenever the engine is running so the sensor is heated, in order to keep it from fouling.
