P03CB

Cylinder 6 Pressure Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Power reduction
Misfires
Check Engine light comes on

Causes

Open or shorted sensor wiring harness
Poor contact in the sensor connector
Cylinder pressure sensor malfunction
ECU problems (rare)

How to Fix

Check the integrity of the wiring harness and connectors
Measure the resistance and signal of the sensor with a multimeter/oscilloscope
Replace cylinder pressure sensor if necessary
Clear error codes and test drive

Related codes

P03CA P03CC P0306