OBD Guide

P2175

Throttle Actuator Control System - Low Air Flow Detected

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced engine power
  • Unstable idling
  • Dips during acceleration
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Dirty or faulty throttle valve
  • Air leaks in the intake tract
  • Malfunction of the mass air flow sensor (MAF)
  • Problems with the throttle control wiring or connectors
  • Software error in the control unit

How to Fix

  1. Properiodic cleaning of the throttle valve
  2. Checking the tightness of the intake tract
  3. Diagnostics and replacement of the mass air flow sensor if necessary
  4. Checking the condition of wiring and connectors
  5. Updating ECU firmware updates

Related codes

Error P2175 by Vehicle Brand