DTC P2173 Alfa Romeo
Throttle Actuator Control System - High Air Flow Detected
Throttle Actuator Control System - High Air Flow Detected
Description
The PCM monitors and compares the difference between the actual Map Sensor reading and the calculated Map Sensor model over time. The PCM detects a gradual long term increase in the difference between these two values, beyond a calibrated adaptive limit, indicating that there is an air leak in the intake system.
Cause and Solution
Vacuum Leak
Engine Oiling System Issue
Restriction In The Exhaust System
Internal Engine Mechanical Components
Resistance In The 5-Volt Supply Circuit
Resistance In The Map Signal Circuit
Resistance In Map Sensor Ground Circuit
Map Sensor
Video Guide
Diagnostic Info
- DTC Code: P2173
- Brand: Alfa Romeo