C054C

Vacuum Sensor A Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation at idle
Increased fuel consumption
Check Engine Light Illuminates
Reduced engine power

Causes

Vacuum sensor malfunction
Open or short circuit in wiring harness
Problems with connecting the sensor (oxidation of contacts)
ECU malfunction

How to Fix

Check the integrity of the vacuum sensor wiring harness
Check the sensor connection and the condition of the contacts
Replace the vacuum sensor if necessary
Check the operation of the ECU (if other reasons are excluded)

Related codes

P0106 P0107 P0108