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Common sensor failures in modern cars and what they typically cost

Modern cars rely on a dense web of sensors to manage everything from fuel delivery to collision avoidance, and when one fails ...
Geekzone

1 of many O2 sensors faulty. will vehicle still work?

The other sensors aren't there as spares - it's not a matter of using a backup one. In general, there would be a sensor for each exhaust manifold (so 1 for a straight 4 cylinder engine, 2 for V6 etc) ...
Team-BHP.com

My Creta gets a new O2 sensor under warranty: 40,000 km service update

Alright, so that engine knocking and the car running like crap? Yeah, it was back. Even after cleaning everything (EGR, O2 Sensor, Throttle body, Intake Manifold, Exhaust manifold) last time, the ...
The State Journal-Register

Talking Cars: Watch those lazy upstream oxygen sensors

QUESTION: I own a 1999 Buick Century. The indicator that shows gear position does not light up, and at night I cannot see what gear I am in. Is this an expensive repair and worth getting fixed? ANSWER ...