P0474

Exhaust Pressure Sensor A Circuit Intermittent/Erratic

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 Illuminates

Causes

Open or short circuit in wiring harness
Poor contact in the sensor connector
Malfunction of the exhaust gas pressure sensor
Problems with the ECU

How to Fix

Check wiring harness for damage
Check the contacts in the sensor connector
Check sensor resistance and voltage
Replace sensor if necessary
Check the operation of the computer

Related codes

P0470 P0471 P0472 P0473