Running lean but shouldnt be..

[jdmae86]

PLEASE LEAVE THE AEM WIDEBAND TRASH TALK ALONE... TRUST ME I WISH I ORDERED A LC-1

When I first got my car running I used my AEM wideband and PowerFC with datalogit to tune the car on the highway. I got my A/F levels between 11-11.5 underboost and normal lean levels just driving around. After about 4-5 months my AEM wideband started reading lean levels in the 16-18+ all the time... So I figured the sensor went bad and I just said whatever b.c I knew my tune was little rich and the car feels the same. So I finally got around to buying a new sensor & installing it. And then surprisingly my A/F levels are still 15.5-18+ all the time with the new sensor. It kinda freaked me out so I took just my AEM Gauge and put it into my friends car & it reads normal in his car. I put his AEM gauge in my car & still reads lean... So the Gauge itself is not bad & the new sensor should be good...

My Sard FRP is 41lbs at idle w. the vac line off...

I can't find any exhaust leaks pre wideband...

Any one have any other ideas what to check... Oh yeah its on a RB25

[SullivanRacing06]

how far away is the sensor away from the snail?

[jdmae86]

how far away is the sensor away from the snail?

right before where the cat would be...

[SullivanRacing06]

hmm mine is 36 away so i guess yours is the correct distance, ive had this on my car for over two years with no glitches. its a aem as well,

or ya could sell it and buy the one ya want