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Grip72 · 07-19-2005, 05:48 PM

alright you remember my car threw code 61 which means:
Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response

anyways, I am pretty sure i need to replace the primary oxygen sensor so i'm going to go ahead and do it...however, i just want to make sure that the PRIMARY O2 SENSOR mentioned above is indeed the one that comes BEFORE the catalytic converter? correct?

also, i reset the CEL and every now and then when i fire up my car, it will rev up, then down, up, down (ex. 800rpm, 1500rpm, 800, 1500 and so forth) and then it stops after i drive for a bit....what is that all about?!

07-19-2005, 05:48 PM	#1
Grip72 Registered User Join Date: Apr 2002 Location: Calgary, AB Canada Age: 39 Posts: 2,962	quick oxygen censor question! alright you remember my car threw code 61 which means: Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response anyways, I am pretty sure i need to replace the primary oxygen sensor so i'm going to go ahead and do it...however, i just want to make sure that the PRIMARY O2 SENSOR mentioned above is indeed the one that comes BEFORE the catalytic converter? correct? also, i reset the CEL and every now and then when i fire up my car, it will rev up, then down, up, down (ex. 800rpm, 1500rpm, 800, 1500 and so forth) and then it stops after i drive for a bit....what is that all about?!