MazicBay Diagnostics
MAZICBAYDiagnostics
FTC Reader Disclosure: When you purchase or register through links on our site, we may earn an affiliate commission at no extra cost to you. Read our Editorial & Advertising Policy.

P2097 on Chrysler 300

Post Catalyst Fuel Trim System Too Rich (Bank 1)

Factory diagnostic protocol and troubleshooting wire for fault code P2097 specifically for the Chrysler 300 (2020–2025, 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8)).

Verified OEM Telemetry & Field Repair Tree
Chrysler 3002020–2025
Chrysler 300
Sedan3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
300 SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$120 - $400
Parts & Labor DIY
Check P2097 On Another Chrysler Model:
Diagnose P2097 on Specific 300 Model Year:

1. Symptoms of P2097 on Chrysler 300

When the Engine Control Module (ECM/PCM) on your Chrysler 300 (3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8)) logs fault code P2097, drivers commonly observe:

Check Engine Light on on Chrysler 300 (3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8))
Fuel smell from exhaust on Chrysler 300 (3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8))
Failed emissions on Chrysler 300 (3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8))
Chrysler 300 OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side dash near left knee panel. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Chrysler 300

Historical warranty claims and technical repair bulletins for Chrysler 300 point to the following failure distribution:

55%
Leaking fuel injector (Chrysler OEM Part)
25%
High fuel pressure (Chrysler OEM Part)
12%
Faulty downstream O2 sensor (Chrysler OEM Part)
8%
Failing catalytic converter (Chrysler OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Chrysler 300.

3. Step-by-Step DIY Repair Guide for Chrysler 300

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P2097 to note engine RPM, load, and voltage when the fault triggered. on the Chrysler 300 equipped with 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8).

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P2097 for chafing, corrosion, moisture, or pin push-out. on the Chrysler 300 equipped with 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8).

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Chrysler 300 equipped with 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8).

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Chrysler 300 equipped with 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8).

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Chrysler 300 equipped with 3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Chrysler 300 (P2097)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Chrysler 300 OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Chrysler 300.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Chrysler 300Verified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
Find Parts on Amazon
* As an Amazon Associate, MazicBay earns from qualifying purchases. Prices & availability subject to change.

Other Common Fault Codes on Chrysler 300

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Chrysler 300:

4. Chrysler 300 P2097 FAQs

What causes code P2097 to trigger on a Chrysler 300?

On the Chrysler 300 (3.6L Pentastar V6 (292HP) / 5.7L / 6.4L 392 HEMI V8 (485HP SRT8)), P2097 is most frequently caused by Leaking fuel injector or High fuel pressure.

Where is the OBD-II port located on my Chrysler 300?

On the Chrysler 300, the 16-pin DLC diagnostic connector is located Under driver side dash near left knee panel. 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 300 with code P2097?

Yes. Downstream O2 sensor indicates rich catalyst output. Given that P2097 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.