P03A2

Cylinder 2 Pressure Sensor Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Loss of engine power
Floating idle speed
Misfire in cylinder 2
Check Engine Light Illuminates

Causes

Malfunction of the pressure sensor in cylinder 2
Open or short circuit in wiring harness
Poor contact in sensor connectors
Damage to the sensor power/ground circuit
Engine ECU malfunction

How to Fix

Diagnose the actual pressure in cylinder 2 (compare with reference values)
Check the continuity and resistance of the sensor circuit
Inspect connectors and contacts for corrosion or damage
If necessary, replace the cylinder pressure sensor
Update ECU firmware (if required)

Related codes

P03A0 P03A1 P03A3