OBD Guide

P03DD

Cylinder 8 Pressure Sensor Circuit Low

P03DD is an OBD-II diagnostic trouble code meaning: Cylinder 8 Pressure Sensor Circuit Low. Common causes: malfunction of the pressure sensor in cylinder 8, open or shorted wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Misfires
  • Unstable idling
  • Check Engine Light Illuminates

Causes

  • Malfunction of the pressure sensor in cylinder 8
  • Open or shorted wiring harness
  • Poor contact in the sensor connector
  • Problems with power supply or sensor ground
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check the contacts in the sensor connector
  3. Check the power supply and ground of the sensor
  4. Replace pressure sensor in cylinder 8 if necessary
  5. Reset the error and check if it returns

Related codes

Error P03DD by Vehicle Brand

FAQ

What does the P03DD code mean?

P03DD is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Pressure Sensor Circuit Low

What causes a P03DD error code?

The most common causes of P03DD include: Malfunction of the pressure sensor in cylinder 8; Open or shorted wiring harness; Poor contact in the sensor connector; Problems with power supply or sensor ground.

How do I fix a P03DD diagnostic trouble code?

To fix P03DD: Check the integrity of the sensor wiring harness. Check the contacts in the sensor connector. Check the power supply and ground of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P03DD?

Limited driving only, diagnose soon

How much does it cost to fix P03DD?

The estimated repair cost for P03DD is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat