OBD Guide

P2DDC

Fuel Injection Quantity C Lower Than Expected

P2DDC is an OBD-II diagnostic trouble code meaning: Fuel Injection Quantity C Lower Than Expected. Common causes: cylinder c fuel injector clogged, low fuel pressure. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Misfire in cylinder C
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Check Engine light comes on

Causes

  • Cylinder C fuel injector clogged
  • Low fuel pressure
  • Fuel pressure sensor malfunction
  • Damaged wiring harness or connectors
  • Fuel pump malfunction

How to Fix

  1. Check fuel pressure
  2. Clean or replace cylinder C fuel injector
  3. Check the condition of the fuel pressure sensor
  4. Inspect the wiring harness and connectors for damage.
  5. If necessary, replace the fuel pump

Related codes

Error P2DDC by Vehicle Brand

FAQ

What does the P2DDC code mean?

P2DDC is an OBD-II diagnostic trouble code that indicates: Fuel Injection Quantity C Lower Than Expected

What causes a P2DDC error code?

The most common causes of P2DDC include: Cylinder C fuel injector clogged; Low fuel pressure; Fuel pressure sensor malfunction; Damaged wiring harness or connectors.

How do I fix a P2DDC diagnostic trouble code?

To fix P2DDC: Check fuel pressure. Clean or replace cylinder C fuel injector. Check the condition of the fuel pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2DDC?

Yes, but get it checked soon

How much does it cost to fix P2DDC?

The estimated repair cost for P2DDC is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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