Philosophical question - can sensors go bad instead of components?
I have a fresh orange glow in my 2001 Sentra's dashboard, looks like a cooked sensor, again. I recently replaced an O2 sensor, and I suspect another has gone. (I hope it's not the catalytic converter) My car is 7 years old, so I suspect I will see aging problems as much as wear/tear items.
Can sensors just go bad, or is always a component?
Does anyone know how many sensors these cars would have? Seems if you keep a Sentra (or any car) long enough, you'll be forever changing EVAP sensors.
of course sensors can go bad before or in place of components.
starting from the intake you have IAT, then MAF, TPS, IACV, then o2 sensor before the cat and then another after the cat. you also have a crankshaft position sensor, a knock sensor and there are more sensors in your transmissions.
So, do you simply have to trust the code reader is doing its job as well as the mechanic? I'd bet at least one of the components I have had replaced didn't need to be, but how would I ever know?
It seems these emissions sensors weaken any vehicle to a high degree.....No wonder people lease cars, they know when to let go.......
well... imho, when the code reader tells me something is bad, it usually is. the computer is looking for a specific value from each sensor and when it doesnt get that value, it comes up with a code. sometimes the sensor is bad, sometimes the wiring going to the sensor is bad or sometimes the sensor is just dirty and not able to accurately "sense" what its designed to sense.
thats why when i get codes, i first check the wiring and the general cleanliness of the area before i condemn the sensor.
Sounds reasonable. The SES went off, yesterday, if it doesn't come back on for awhile (several months), I'll chalk it up to dirt. That has happened, before. SES lights are designed to torment us.......
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