C0561

Vacuum Sensor A/B Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Deterioration in braking performance
Increased fuel consumption
Check Engine light comes on

Causes

Malfunction of one of the vacuum sensors
Vacuum system leak
Problems with the sensor wiring harness
ECU malfunction

How to Fix

Check the integrity of the vacuum hoses
Test vacuum sensors to specifications
Check wiring harness connections
If necessary, replace faulty components
Reset the error and check the system

Related codes

P0171 P0172 P0106