langsta143 Posted January 28, 2004 Share Posted January 28, 2004 I was wondering if anybody can tell me where is the o2 sensor located on a is300 01...cuz i got a air/fuel ratio gauge..and i need to know where is the o2 sensor for it before i install it..thanks Quote Link to comment Share on other sites More sharing options...
chubyball Posted January 28, 2004 Share Posted January 28, 2004 The common sense of finding the O2/S is locate before and after the catalytic. To locate your catalytics is bottom your front cars where the manifold connects to 2 pipes then connect to its. Quote Link to comment Share on other sites More sharing options...
TWINTURBO619 Posted February 2, 2004 Share Posted February 2, 2004 I was wondering if anybody can tell me where is the o2 sensor located on a is300 01...cuz i got a air/fuel ratio gauge..and i need to know where is the o2 sensor for it before i install it..thanks UNDER THE HOOD, LOOK UNDER THE PASSENGER SIDE AND STRAIT AT YOUR MANIFOLD. FOLLOW THE PIPES UNTIL YOU SEE SOMETHING STICKING OUT OF IT WITH WIRES LEADING TO THE FRONT OF THE CAR. THAT'S YOUR O2 SENSOR. Quote Link to comment Share on other sites More sharing options...
RoadRash Posted February 10, 2004 Share Posted February 10, 2004 The IS300 has the same exhaust system as the IS200 (I have). All in all there are 3 O2 sensors. The manifold goes down in 2 pipes, in each pipe is one O2 sensor. Then it connects to 1 pipe, through the "cat" and after this there is another O2 sensor. If I wanted to tune my car with wide-band sensors (so that I don't need a dyno) and can tune it with an S-AFC or such, would I have to exchange all 3 sensors or only one of them??? Quote Link to comment Share on other sites More sharing options...
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