Code result
P2DDE
Fuel Injection Quantity D Lower Than Expected
Moderate severity
What it means
The measured fuel injection quantity for group D is below the calibrated window. Injector flow drift, rail pressure off, or measurement bias.
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
Injectors partially clogged
highOne of the most commonly reported causes for this code — check this first.
Fuel rail pressure low
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2DDE freeNo credit card required