Code result
P0486
Exhaust Gas Recirculation Sensor B Circuit
Moderate severity
What it means
A general electrical fault on EGR sensor B — second EGR sensor on dual-loop or HP/LP EGR systems. EGR mixes inert exhaust into intake to lower combustion peak temperature — too little raises NOx, too much causes misfires and rough running.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Sensor failed
highOne of the most commonly reported causes for this code — check this first.
Related help
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