Help understanding?

**Quarterpastgone** · 07-09-2012

I have spent alot of time driving and making small changes to the ve table to get it right. I then bought a wideband to do wot tuning and it read 19.3 -19.6 all the time. I now a narrow band sucks for fine tuning just wanted to get into the ball park with it. Teh histos are within 5 either way throughout the scans. What do i do know besides look for a exhast leak? If 19.3 is correct would it even run worth a damn?

**JoRoW99** · 07-09-2012

Easy way to tell if your wideband is accurate is to look at the O2 sensor. if the readings are in the 900+ range you are rich during WOT (which is good) If the O2 says less than say 400 then youre lean and thats not good.

And I tune the maf and leave the VE stock.

**Quarterpastgone** · 07-09-2012

I think that is the point i dont get, All i had was the narrow band and all i did was tune the ve table till it was with in 5 PLus or minus all the time. Then when i installed the wideband it chows 19.3 to 19.7 all the time. I know that you can get in teh ball park with the narrow band, was told not to do wot tuning with out wide band.

**Z34Phoenix** · 07-09-2012

i dont think the WB is working right... take the sensor out of the car and see what it reads. then install it again and compare. is it a new wb kit or used?

**JoRoW99** · 07-09-2012

What i mean is run the narrowband and wideband and the same time and compare them at WOT. or put the narrowband in and go WOT and check what it says, it should be 900+ at least at WOT.

**Fivefingerdeathpunch** · 07-09-2012

My wideband does not even read 19 lol.

it goes from 10-17.9.

I think you have an issue there. And I have to agree with jorow, I adjusted the MAF tables a smidge and never touched the VE tables. I did adjusting elsewhere.