hachiroku

Hi Guys,
Wanted your opinion on things...I replaced both primary oxygen sensors 2 years ago with brand new Bosch units. As of yesterday, I've been having situations where bank 1 would all of a sudden read lean and cause short term trims to peg +25... when i reset the computer, all is well for random amounts of time, as well as read out for the sensor itself seems to be reading perfectly.

Doesn't seem that the sensor is faulty because after ECU reset it reads perfect in full sweep...but maybe the sensor is on its way out?

Thanks!

Any other idea's? Probably gonna replace my airboxes with unmodified ones as well since I am running a set of hacked up psudo ROW mod boxes which I don't like. Probably will do that today...with the unmodified boxes I picked up recently.

sjc246

Are the new sensors "direct-fit" OE equivalent sensors or are they "universal" sensors? Any fault codes?

hachiroku

direct fit...pretty sure its going bad. gonna give it a few more days...