I have an innovate wideband and rn e85 at idle the reading should be 9.8 right? well sometimes it reads 9.8 and it wil look normal for a little bit then randomly it changes. it goes to 0.9 a lot and just a lot of random readings. i just changed the sensor, i bought one used, i asked if it was ever left in the exhaust without being connected to the controller, and the seller said no. the sensor belonged to a tuner.

anyone know whats wrong? i tried to do a free air calibration before i installed it, but it didnt affect anything. could it be my controller?

i dont think throttle affects the readings either, they just randomly change, ocasionaly, it will read normal , but only for a few seconds.

 

I would try a brand new sensor as I have had a few friends who bought used innovative widebands with sellers swearing the sensor was good. Turns out that in every case where the wideband was reading erraticly a new sensor was installed,then free air calibration was performed then worked perfectly.
The sensors are from a VW turbo beetle and can usually be found online for under $60.00. I would never put in a used o2 sensor,even if my mom told me it was good.

 

def change the sensor especially that you bough it used so you dont even know if it was working right from the beginning

 

The wideband should read 14.7 at idle in closed loop and bouce around quite a bit, unless you have changed the display reading for E85 fuel?

I thought the Innovate only displayed for gasoline, diesle, propane, and lambda, but its been a while since I looked at the options.

 

in the innovate manual, it says ethanol should read 9.8 at idle. if i remember right...

 

Ethanol is stoich at 9.8 or 1 lambda (E85 10.2) but if your WB is still on gasoline scale it will still read 14.7 afr if burning E85 stoich. You can either set it read ethanol scale, lambda, or gas and can still figure out what afr you have.

Anyway, did you do a full heater cal with new sensor cal? What firmware 1.00 or 1.10?

 

It will only read 9.8 if you have setup the software to display E85 AFRs.

If you haven't specifically setup the wideband for E85, you should be seeing 14.7, as the Innovate is setup to read on the gasoline scale by default.

Your numbers don't make sense though. You're saying it reads 9.8 but then randomly drops to 0.90. an AFR of 0.90 means by weight, you are injecting more fuel into the motor then air.

Either you are reading on the lambda scale and are seeing 0.98 -> 0.90, or you are on an E85 scale readin 9.8 -> 9.0. Either case, you may just be seeing normal closed loop operation.

Or you are on the gasoline scale and are retardly rich and seeing rich misfires causing the bouncing AFR. You'd also be throwing engine codes for fuel trims, random/specific missfires.

 

needs a new sensor

 

i had my friend hook up his lap top and my sensor was reading 14.7 so yea i was wrong. lol but then my sensor started to not read right at all.. like just random readings. We used this sensor and it was ok. so the LC-1 is ok. And i also need to figure out why my gauge reads werid. Do you think i wired it wrong? or maybe the gauge is defective?

thanks

 

ok i emailed dynotune nitrous ( the company that makes my guage) and they said my LC-1 output could be bad? can it be fixed?