I'm wondering if running e85 can damage the wideband O2 sensor. I have a AEM wideband, and today it started to act weird, showing lean (13.5 and even saw 14) on a wot pull, and also the afr gauge is not very responsive when accelerating in short bursts. Anyone else have this issue?
I got a feeling my wideband O2 sensor is going. The car feels fine, and pulls hard. I have the tephra 7 mod, and the CEL did not flash at all, so I doubt it's knocking.
I've had the wideband for 2 years on pump, and it's been fine, and been running e85 only for about 1 month.
Btw, where's a good place to buy a new aem wideband 02 sensor, and does it need to be calibrated?
Thanks.

 

Ran my AEM on E85 for 2 years with no issue.

 

Same here on my Zeitronix no Issues.

 

with e85 you can run that lean and not see knock sometimes. make sure the hose to your fuel pressure regulator didn't pop off. that would put you right into that 13.x afr if it did

 

thanks Mellon, i checked the hose to the fuel pressure regulator and it's still on.
When i accelerate (not wot), it stays around constant 14.7, even when i let off still reads 14.7. Before it used to go down into 11's or 12's with every throttle action.