P0473

Exhaust Pressure Sensor A Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling

Causes

Malfunction of the exhaust gas pressure sensor
Open or short circuit in wiring harness
Poor contact in sensor connectors
ECU malfunction

How to Fix

Check the integrity of the wiring harness and sensor connectors
Check sensor resistance and voltage according to manufacturer specifications
Replace exhaust gas pressure sensor if necessary
Check and, if necessary, replace the computer

Related codes

P0470 P0471 P0472 P0474