12/28/2007, 11:20PM
where is the oxygen sensor on the 1994 Audi quattro 100
on the exshust pipe,some are down below manafold,in front of cat conveter,and behind muffler.some vehichles have as many as 3 or 4 if replaceing one, replace all.not cheep where im at $40.00 a sensor.
12/29/2007, 11:44PM
Yes, depends which one you mean. There are usually at least one in the manifold, one right in front of the catalytic convertor, and one to the rear of it.
