Sunday, May 30, 2021

O2 Sensor light coming on while driving - rough - 420SEL

I've noticed the O2 sensor light comes on while I drive - sometimes - and stays on until I stop, turn off and restart the car. When its present, the car behaves odd. Engine feels like its working harder to keep the car going, almost like a jerky motion The car idles rough when I stop and acceleration also feels somewhat affected. Wondering how to diagnose which O2 sensor could be the culprit? My knowledge of these cars is very primitive and I can't simply plug in a OBD scanner to figure it... O2 Sensor light coming on while driving - rough - 420SEL
I've noticed the O2 sensor light comes on while I drive - sometimes - and stays on until I stop, turn off and restart the car.
When its present, the car behaves odd. Engine feels like its working harder to keep the car going, almost like a jerky motion
The car idles rough when I stop and acceleration also feels somewhat affected.
Wondering how to diagnose which O2 sensor could be the culprit?
My knowledge of these cars is very primitive and I can't simply plug in a OBD scanner to figure it...

O2 Sensor light coming on while driving - rough - 420SEL

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