P2174

Throttle Actuator Control System - Sudden Low Air Flow Detected

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine idling
Jerks when accelerating
Reduced engine power
Increased fuel consumption
Check Engine Light Illuminates

Causes

Contamination or mechanical damage to the throttle valve
Throttle Position Sensor Malfunction
Problems with wiring to the throttle body
Malfunction of the electric throttle valve
Software errors in the ECU

How to Fix

Check the condition of the throttle valve and clean if necessary
Check the operation of the throttle position sensor
Check the integrity of wiring and connectors
Test the electric throttle actuator
If necessary, adapt the throttle valve

Related codes

P2175 P2176 P2177