[V8] O2 sensor crossover 02 A6 Q, V8 ~ ? Mustang 5L

Tony and Lillie tonyandlillie1 at earthlink.net
Fri Sep 6 19:34:05 PDT 2013


They do not work on the newer cars. The rears on your car are 4-wire, so in 
theory they will work. However, something in the heater resistance or 
current draw is different. I've tried them, and they throw a heater code 
circuit malfunction, which then turns on the CEL.

Get either the 4-wire universal ones designed with your application in mind, 
or the direct plug in ones. BTW, the fronts on your car are wide band, 
either 5 or six wire. Don't recall exaclty how many wires off the top of my 
head.

I would have replaced the O2's first, as they can be bad and cause false 
readings that show a bad cat (mostly the rears, bad fronts also show in poor 
running/fule milage). Either way, I'd highly recommend replacing them with 
the cats.

HTH,
Tony
----- Original Message ----- 
Subject: [V8] O2 sensor crossover 02 A6 Q, V8 ~ ? Mustang 5L


> Greetings,  I have an 02 A6 Quattro V8. Which needs new cats.
> I have Davico direct fit replacements but may need to replace the four O2
> sensors if they don't come out well.
> Heard on here that there is a crossover for these sensors to a Ford 
> Mustang
> 5L V8.  But I don't know the correct part number.
> Does anybody know what part no. that would be?  And any feedback on using
> them?
>
> Thank you for your time
> John Zofchak 



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