Wideband warm up

[TurboTdr3.8]

If you put a wideband sensor on your car do you let it warm up before you start the car or do you just get in and go like normal . I have heard it both ways what seems to work the best and make your sensor last a while . I know lead is a killer I am talking about unleaded fuel .

 

[granatl]

They are self-heated, so you just start the car like normal. If you're using the WB to output narrow band for the car, the chip in the car still doesn't start using the O2 sensor in closed loop until the coolant temperature reaches 160 (and there's a timer countdown as well).

 

[dvernst]

My Innovate WB with the XD-16 gauge has a timer that lets you know when it's warmed up. If you're not running leaded fuel I don't think it's too important

Posted from the TurboBuick.Com mobile app

 

[we4Mateo]

Just start it like normal.

 

[87geeinn]

Just start it like normal.

x2

 

[gtfrede]

I let mine run through the cycle and you can tell when its ready when it goes from stoich to lean...thats when I start it. But Im anal about things.

 

[we4Mateo]

I let mine run through the cycle and you can tell when its ready when it goes from stoich to lean...thats when I start it. But Im anal about things.

They warm up faster when you drive them, nicely of course, but letting it fully warm up while idling just washes the cylinders down more as it takes longer to go stoich by sitting there vs driving it.

 

[gtfrede]

Yes im referring to just key on prior to starting the engine...it goes through a self calibration procedure for stoich while warming up the sensor before any exhaust gets to the system

 

[we4Mateo]

Yes im referring to just key on prior to starting the engine...it goes through a self calibration procedure for stoich while warming up the sensor before any exhaust gets to the system

I thought the engine went stoich after coolant temp reached a certain temp? The O2 shows it but shouldn't cause the car to enter that mode. It should show leaner than stoich without exhaust present and just atmosphere.

Posted from the TurboBuick.Com mobile app

 

[TurboBob]

Just start it like normal.

x3

 

[TurboDave]

Yes im referring to just key on prior to starting the engine...it goes through a self calibration procedure for stoich while warming up the sensor before any exhaust gets to the system

I doubt it's calibrating for stoicheometric under those conditions, since with just a key on the conditions at that time are full lean, there is no stoich to calibrate to.

The car is going to start in open loop and stay there until two things occur, the coolant temps reach a predetermined value (usually 130+), and a timer counts out (don't remember that value).
So by the time all that happens the wideband will be plenty warmed up and ready for use.

You don't have to go through all that warm up stuff, just start it and go, like any other car.

 

[gtfrede]

Just talking about the sensor here guys not the car....when I first key on the sensor reads in the 13s and bounces around...then finds 14.7 and slowly starts to read to max lean which is when I start the car because it's then reading correctly due to the sensor being warm by the self heater built into the circuit....May or may not be necessary but I have justified it in my mind....aem wide bands are self calibrating and I feel this is when this occurs...if you hit it with exhaust while this is occurring I feel it could throw it off slightly....

 

[TurboDave]

It really doesn't make a lick of difference, but if it makes you feel more comfy, then go with it.