P2172 Chrysler Code - High Air Flow/ Vacuum Leak Detected Instantaneous Accumulation
Quick Answer
The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) detects that a large vacuum leak is present or that the signal voltage for both Throttle Position (TP) Sensors is stuck a 2.5 volts and calculated Manifold Absolute Pressure (MAP) is less than the Gas Flow Adaptation value. Common causes include Large Vacuum Leak, Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2172 Chrysler indicates High Air Flow/ Vacuum Leak Detected Instantaneous Accumulation.
- Common causes
- Common causes include Large Vacuum Leak, Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2172 Chrysler Description
What are the Possible Causes of the DTC P2172 Chrysler?
- Large Vacuum Leak
- Faulty Manifold Absolute Pressure (MAP) Sensor
- Manifold Absolute Pressure Sensor harness is open or shorted
- Manifold Absolute Pressure Sensor circuit poor electrical connection
- Faulty Throttle Position (TP) Sensor
How to Fix the DTC P2172 Chrysler?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2172 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2172 Chrysler code?
Need more information on how to fix the P2172 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2172 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2172 Chrysler Code
No Frequently Asked Questions about P2172 Chrysler Code found.
Discuss the causes and fixes for P2172 Chrysler OBDII Code
-
I have this code. I changed the throttle body, Mass airflow sensor, and the battery. It was still stalling. So I brought it to the dealership. The said they did the PCM update. I am a girl and I am not sure if the mechanic was giving me a hard time because he didn’t think I knew what was going on but I asked him if he can check the MAP sensor and vacuum leaks. He said he checked the sensor already and it’s fine. He rolled his eyes about having to check the vacuum lines and said that wouldn’t be it. He claimed he checked them and they were fine. I get home and the car stalled again. I am so frustrated!!
-
I'm sorry you are having those problems; I know how frustrating that can be. Let me check if I can find more information for you. What model, year and engine size is your vehicle?
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
