: O2, IAT, MAF sensor reliability on 2000 N*?

05-05-08, 04:46 PM
How often do O2, IAT, and MAF sensors fail (or become less accurate) without setting a code? Just curious, with a 2000 Seville at about 116,000.

05-05-08, 05:24 PM
WITHOUT setting a DTC? I'd say seldom if ever.

05-05-08, 07:13 PM
If electronics pass an infant mortality period (6 months or so) they generally last forever. Oxygen sensors do occasionally get weak (sensing/voltage change speed) but, as Ranger indicated, will set a code when out of spec.