Code result

P228E

Fuel Pressure Regulator A Exceeded Learning Limits - Too Low

High severity

What it means

Fuel Pressure Regulator A Exceeded Learning Limits - Too Low: the adaptive learning value has reached its lower limit, so the ECU can no longer compensate. This controls fuel-rail pressure.

Is it safe to drive?

No — stop driving

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

  • Long-term wear of regulator

    high

    One of the most commonly reported causes for this code — check this first.

Get the full diagnosis

Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.

Diagnose P228E free

No credit card required