I am getting ready to start doing ve learns with my zt2 wideband. The car is supercharged too. Does that mean that I have to change my BLM MAP learn threshold table to a higher value than 99? I know that you have to adjust the cts threshold to 150 degrees Celsius, but are there any other changes that I'm missing? Also, what do I set the filter too for the wideband? It is currently 0% fast.

 

For the filter, make it as fast as possible and have a smooth change in value.

For the BLM learn, no, can't use the BLM learn in boost. Need to make sure that the VE table is correct before commencing with boost tuning. The BST - PW multiplier table is an adjustment to the injector PW based on 100 KPa MAP from the VE table.

RBob.

 

Im confused about how to make it fast as possible while getting a smooth value. Wouldn't I just leave it at 0% then? Im not understanding that part.

 

It is a filter, it both smooths and delays the reading. Some WB outputs are jumpy, in those cases adding some additional filtering makes the signal more useful.

RBob.

 

I set the cts threshold all the way up, and set up the ve learn for a wide band with a 10 percent filter. I still can't get it to do a ve learn with the wide band. What else am I missing?

 

Does the WB AFR show on the main WUD display? If not need to set it as the preferred device in the Preferences dialog. Note that you can do a learn from a data log, just play it back with the VE Learn active.

RBob.

 

I have wide band selected in preferences. When the WUD is up it shows the cAFR that changes depending on throttle given.

 

That is the commanded AFR, what the ECM is using in the PW calculation. Right below that should be the WB reported AFR. If not, click/depress the Preferred WB button next to the ADC channel entry in the Preferences dialog.

RBob.