• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Wideband sensor failing or problem?

CrazyGuy03

CrazyGuy03

Active member
Car wash, got gas and Wideband starts acting up.
Dont know fuel trims as both aerroforces refused to boot recently - fml
so it usually flicks between 14.x and 15.x unless I rapidly deaccel it will go to LEN or AIR and quick jabs brings it into the 13s

well after I left I noticed I was getting into the 16s and 17s
slowly de accelerating was causing instant LEN where that usually only happened over 60mph
a good WOT run still showed 11s and 12s but it's definitely not right.


I was thinking maybe a gasket leak but it doesn't sound loud.
Maybe the sensor finally failed?

Anyone experience anything similar ?
 


I don't have a wideband yet, but very recently my LTFT's were bouncing at or near 16.4 and I got a P0170 (Bank 1 too lean). This started almost immediately after my last fill up. I'm running E85 on a stock tune with 42# injectors. First two tanks went through fine. LTFT's consistently around 10. Then all the sudden, boom. I'm lean.

Did they recently switch to winter blend? Shouldn't that have happened a while ago? Could that cause what we're seeing?
 
^ very strange possibility. I never drove this car in the winter before with a Wideband. Been parked every year .....
 
How many miles on the sensor??

I'd replace it if it was more than 15-20k on it, even though they say it can last 40-50k.

I'd double check the power wiring to the gauge too.
 


Update
car on lift and everything is solid, clean and sealed. No rust no broken wires no leaks.

Truth is , i don't think the wideband lied. It actually told me something about the gas being sold from a popular car wash chain, delta sonic
I ran that tank to empty and re filled twice at the same Sunoco. The gauge is reading like it was before this issue - completely normal.
NEVER have I seen this before and I have had gas from all over here to ohio - no issues ( BP, mobile, crosbys...)

Seem like they might be using a bit more than E10 in those 93 pumps...
 
You must log in or register to reply here.
Back
Top