P03AB

Cylinder 3 Pressure Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

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

Causes

Cylinder 3 pressure sensor malfunction
Open or short circuit in wiring harness
Poor contact in sensor connectors
ECU malfunction

How to Fix

Check the integrity of the sensor wiring harness
Check contacts in sensor and ECU connectors
Check the resistance and voltage of the cylinder pressure sensor
Replace the cylinder pressure sensor if necessary

Related codes

P03A0 P03A1 P03A2