O2 sensor question

[JSD69Vette]

I have two heated O2 sensors on my car, one upstream and one down. I need to replace them but I haven't found via a search of this site how to identify them.

The upstream one has 2 white, one black and one gray wire.

The down stream one has one white, one red, one black and one yellow wire.

where can I purchase these and how do I know what to order? Vendors on the site? Or can I simple bring them to a parts store and match them up?

Thanks for the help.

 

[JSD69Vette]

whether or not anyone cares I did manage to find out what vehicles the O2 sensors I was looking for are from.

the bosch 5 wire WB that goes to my PLX device is from a Caddy SLR '04 -06 and the o2 is from a Dodge durango 4.7l 01-03.

 

[TurboDave]

What prompts you to think they need replacing? Have they been polluted with leaded race gas??

 

[JSD69Vette]

TurboDave.

as you read in the A/F ratio post, I was thinking that they were giving me bad readings. Turns out after replacement they weren't.

I need to take the time, re-learn tuning these cars after not really driving this car (hard) for two years while I built my own house.

Time to start palyin' again....WooHooo!

 

[TurboDave]

There's plenty of help here. Lot's of Translator GenII users, and even us Translator Pro users could help.

 

[TurboDave]

BTW, how in the world did you ever figure out that that particular Caddy uses the Bosch LSU 4.2 sensor with the square connector????

 

[kidglok]

sometimes they just need to be calibrated, not replaced

 

[TurboDave]

sometimes they just need to be calibrated, not replaced

PLX doesn't require calibration. Thier controllers are a bit more sophisticated. And as JSD found out there wasn't anything wrong with them.

 

[Royal-T-Ltd]

BTW, how in the world did you ever figure out that that particular Caddy uses the Bosch LSU 4.2 sensor with the square connector????

lol..... my question too - regardless though, THANK YOU! saves me the time of figuring it out.... on my old Innovate unit i know it was a VW part no...... sux that i have a few spares of those. Before i purchased the PLX unit i thought i might get lucky and they would be the same.... oh well - Happy Spoolin'

aaron

PS JSD69Vette, Forgot to ask Caddy SLR....huh? Did you mean Caddilac XLR?

 

[JSD69Vette]

I did mean XLR, sorry. I had the fortunate opportunity to deal with a very patient guy at my local NAPA, he spent the time to cross-reference the numbers stamped on the unit and managed to find the vehicle it came stock on.