Code result
P26B6
Fuel Shutoff Valve B Control Circuit Stuck On
Moderate severity
What it means
The second fuel shutoff valve stays open when commanded closed.
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
Valve seized open by debris
highOne of the most commonly reported causes for this code — check this first.
ECU output driver stuck on
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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