AEM UEGO question

[markp]

I just installed my wideband and had a few questions. I was just wondering if it is normal for the unit to display --- when decelerating while still in gear. At cruise, it will fluctuate between 14.7-15.1 AFR but when I let go of the gas and decelerate while in gear, it will display --- after about 2 seconds. Also, my idle or rpm drops down (when i engage the clutch) to about 600 rpm, the unit will read lean until I start cruising. I have my fuel trims zeroed out so I don't know why it reads so lean at low rpms.

Just as a side note, I have the wideband 02 in place of my rear 02 sensor with no cat.

If anyone could help me out, I'd appreciate it, thanks.

 

[16gpoweredgsx]

Yes that is completely normal b/c the ecu cuts fuel on deceleration. You can adjust your idle to bring it back to 750 rpms. There is a tech article on vfaq.com (also here on tuners) on how to do it. I'd post a link for you but I don't know how.