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P0174 on Dodge Charger: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0174 (P0174: System Too Lean (Bank 2)) specifically on the Dodge Charger (2020–2026, 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo).

2020–2026
ChargerSedan
Sensor Voltage Ref
0.1V – 5.0V Ref
Charger SAE J1979 Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
High urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0174 On Another Dodge Model:
Dodge Charger

1. Symptoms of P0174 on Dodge Charger

When the Engine Control Module (ECM/PCM) on your Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo) logs fault code P0174, drivers commonly observe:

System alert or indicator light illuminated (P0174) on Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo)
Intermittent performance throttling or unexpected operation halts on Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo)
Audible sensor relay clicking or anomalous status telemetry in dashboard logs on Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo)
Degraded operational throughput or error dialog popups on startup on Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo)
Readiness monitors failing state emissions or system compliance audits on Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo)
Dodge Charger OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower dash assembly next to hood lever. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Dodge Charger

Historical warranty claims and technical repair bulletins for Dodge Charger point to the following failure distribution:

55%
Component aging, oxidation, or degraded internal circuit element (Bank 2 Intake Gasket Leak) (Dodge OEM Part)
25%
Wiring harness abrasion, loose terminal pin, or ground voltage float (Dodge OEM Part)
12%
Outdated firmware microcode or incompatible software driver update (Dodge OEM Part)
8%
Thermal stress or excessive operational duty-cycle fatigue (Dodge OEM Part)
8%
Contamination from carbon buildup, moisture ingress, or dirty filtration (Dodge OEM Part)

3. Step-by-Step DIY Repair Guide for Dodge Charger

01
Connect Diagnostic Scanner / Logging Monitor to Retrieve Telemetry

Interface with the diagnostic port or system console using verified scanning hardware. Record freeze-frame data, active sub-codes, and timestamps to isolate whether P0174 is static or intermittent. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.

Required Tool: Smoke machine, Carb cleaner spray
02
Perform Physical & Electrical Circuit Inspection

Visually inspect the physical component (Bank 2 Intake Gasket Leak), connector pins, and associated wiring harnesses for signs of corrosion, thermal melting, or loose grounding clips. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.

Required Tool: Multimeter, Flashlight, Contact Cleaner Spray
03
Component Testing & Resistance / Voltage Verification

Measure reference voltages and resistance thresholds against manufacturer factory specifications. Replace any component failing nominal impedance tolerances. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.

Required Tool: Smoke machine, Carb cleaner spray
04
Execute Component Replacement or Software Configuration Patch

Install genuine OEM replacement hardware or execute registry / service commands. Ensure all mounting bolts are torqued to factory specifications. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.

Required Tool: Standard Hand Tool Set / Terminal Commands
05
Clear Diagnostic Trouble Code & Complete Verification Drive Cycle

Erase the fault code from non-volatile memory. Perform a standard verification cycle (e.g. 15-minute mixed drive or system stress benchmark) to ensure monitors reset to 'Ready' state without recurrent fault flags. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.

Required Tool: OBD-II Code Reader / Diagnostic Suite

Other Common Fault Codes on Dodge Charger

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Dodge Charger:

4. Dodge Charger P0174 FAQs

What causes code P0174 to trigger on a Dodge Charger?

On the Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo), P0174 is most frequently caused by Component aging, oxidation, or degraded internal circuit element (Bank 2 Intake Gasket Leak) or Wiring harness abrasion, loose terminal pin, or ground voltage float.

Where is the OBD-II port located on my Dodge Charger?

On the Dodge Charger, the 16-pin DLC diagnostic connector is located Driver lower dash assembly next to hood lever. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Dodge Charger with code P0174?

Caution. Limited operation permitted only to reach a nearby repair facility or backup critical personal files. Given that P0174 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.