oxygen and knock sensor

[elmasduro]

hi all, i have a toyota camry le 2002 4 cylinder (I4) with 147,560 miles on it. today i was driving and the check engine light came up. i use my scanner and saw two codes: p0325 which points to knock sensor and p0141 which points to oxygen sensor. i am not sure if both are damage or only one is damage and giving a false reading to the other.

can somebody tell me if this mean that both sensor are damage or how do i know which one is not good. i dont know much about mechanic, trying to learn

[johnnyzee]

Knock sensor tends to go off in combo with other sensors if they malfunction and a knock is observed.

The problem could be your o2 sensor or knock or both, but I doubt it.

The codes just mean that the reading at those sensors are off spec, not necessarily that they are broken.

I've heard of this exact combination of codes, yes exact, knock and o2 at the same time, and the problem was the coils/wires. If you have original coils/wires with that kind of mileage, I am sure that is the problem. When did you last change your plugs, wires, and/or coils?

[ToyotaToday]

Originally Posted by elmasduro

hi all, i have a toyota camry le 2002 4 cylinder (I4) with 147,560 miles on it. today i was driving and the check engine light came up. i use my scanner and saw two codes: p0325 which points to knock sensor and p0141 which points to oxygen sensor. i am not sure if both are damage or only one is damage and giving a false reading to the other.

can somebody tell me if this mean that both sensor are damage or how do i know which one is not good. i dont know much about mechanic, trying to learn

most likely o2 sensor as I have a 2002 and it went on me even earlier. I read Consumer Reports that the 02 sensor is a problem area. But after 147,000 miles, that is not bad. Mine went after 100,000 km's (about 60,000 miles).

[njerald]

Follow the diagnostic steps in the Service Manual....