P0172 on Chrysler Pacifica: Fix & DLC Location
Factory diagnostic troubleshooting wire for fault code P0172 (System Too Rich (Bank 1) - Symptoms, Causes & Step-by-Step Fix) specifically on the Chrysler Pacifica (2020–2026, 3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV).
1. Symptoms of P0172 on Chrysler Pacifica
When the Engine Control Module (ECM/PCM) on your Chrysler Pacifica (3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV) logs fault code P0172, drivers commonly observe:
2. Most Likely Causes on Chrysler Pacifica
Historical warranty claims and technical repair bulletins for Chrysler Pacifica point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Chrysler Pacifica
Use dedicated MAF cleaner to remove carbon buildup from sensor wires. on the Chrysler Pacifica equipped with 3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV.
Use live OBD-II scanner data; negative trims beyond -10% indicate the ECU is cutting fuel. on the Chrysler Pacifica equipped with 3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV.
Perform a fuel pressure leak-down test to identify injectors leaking raw gasoline into cylinders while parked. on the Chrysler Pacifica equipped with 3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV.
Other Common Fault Codes on Chrysler Pacifica
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Chrysler Pacifica:
4. Chrysler Pacifica P0172 FAQs
What causes code P0172 to trigger on a Chrysler Pacifica?
On the Chrysler Pacifica (3.6L Pentastar V6 (287HP) / 3.6L Plug-In Hybrid eFlite EV), P0172 is most frequently caused by Faulty or leaking fuel injector or Contaminated Mass Air Flow (MAF) sensor.
Where is the OBD-II port located on my Chrysler Pacifica?
On the Chrysler Pacifica, the 16-pin DLC diagnostic connector is located Beneath driver steering column bezel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Chrysler Pacifica with code P0172?
Driveable short distances, but unburnt fuel can damage catalytic converters. Given that P0172 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.