Code result
P233E
Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Low
Moderate severity
What it means
The supply line that powers the solenoid of fuel pressure regulator B is below the expected voltage with the regulator commanded active - typically a high-resistance feed, partial short to ground or weak relay contact.
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
Supply feed has high contact resistance
highOne of the most commonly reported causes for this code — check this first.
Partial short to ground on supply line
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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