P2174
Throttle Actuator Control System - Sudden Low Air Flow Detected
P2174 is an OBD-II diagnostic trouble code meaning: Throttle Actuator Control System - Sudden Low Air Flow Detected. Common causes: contamination or mechanical damage to the throttle valve, throttle position sensor malfunction. Estimated repair cost: $17–89.
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
Error P2174 by Vehicle Brand
FAQ
What does the P2174 code mean?
P2174 is an OBD-II diagnostic trouble code that indicates: Throttle Actuator Control System - Sudden Low Air Flow Detected
What causes a P2174 error code?
The most common causes of P2174 include: 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.
How do I fix a P2174 diagnostic trouble code?
To fix P2174: 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. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2174?
Yes, but get it checked soon
How much does it cost to fix P2174?
The estimated repair cost for P2174 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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