Jeff Po135 Bank 1 Sensor 1

[loloterp]

This Mean I Need To Replace The O2 Sensor??? On The Passenger Side Before The Catalyst?? I Just Want To Be Sure. It Saids I Need To Have Two Per Vehicle...is There A Difference B/w The Driver And Passenger Side?? I Found One For $80..is It To Good To Be True?? Check It Out!!

[RunningOnEMT]

there should just be an upstream and down stream O2


thats the way i've been on every car i've ever owned (ford, vw, mazda, and my CTSV)

no distinction left to right

hope that helps


btw...does your username mean you're either a maryland student or grad?

[loloterp]

yea i go to UMD college park...jus bought catera 2000 its been buggin me...so u said i should buy two sensor...u know where i can buy cheap one..and wat do they mean by rear and front???

[todd2fst4u]

no there are left and right banks on the catera. there are 4 o2 sensors in all. 2 before the catalytic converters (1 left, 1 right) and 2 after the catalytic converters (1 left, 1 right). here is some information i found.
"Sensor 1 is before the catalytic converter. Sensor 2 is after. The Bank 1 & 2 refers to the left side and right side of the V-type engine separately. The Bank with the number 1 cylinder is always Bank 1, Bank 2 will start with cylinder #2 on your engine."
you'll have to figure out which side has cylinder 1 on it. ask Marks DTM Calib. he'll probably know

[RunningOnEMT]

there will be at least one before and one after each cat

front (pre-cat)
rear(post cat)

the rear is usually the more expensive of the two

um, i would check advanced autoparts

i think there is one on greenbelt road up by the chevy's

i went to UMD, i was actually just up there for the ladies basketball game on sunday (graduated in 04)

GO TERPS

[loloterp]

thank youu so much..ill look for the right one online. thanks

[CateraSport2000]

Go to rockauto.com. You can get an OEM part for a reasonable price (still over $100!). The non-GM ones may have to have wires spliced, etc. and many shops aren't willing to do that. You are better off with AC DELCO parts for this.

Also read this set of messages as I had the same problem on my 2000: http://www.cadillacforums.com/forums...=oxygen+sensor (Oxygen Sensor buying help - Code P0155)

Good luck

[RunningOnEMT]

have any luck?

if not i can pick one up at the kelly's or the advance here and bring them to campus this weekend, i'm stopping by on sunday anyways

[loloterp]

Well, the dealer said it would be 225..which is crazy..If you pick one up for me, how much would i owe you..The inspection wont let me pass, until the CEL light is clear

[RunningOnEMT]

Originally Posted by loloterp

Well, the dealer said it would be 225..which is crazy..If you pick one up for me, how much would i owe you..The inspection wont let me pass, until the CEL light is clear

lemme call and ask real quick ...