Dodge Charger P0957 Engine Trouble Code
What is Dodge Charger P0957?
Dodge Charger P0957 code can indicate a faulty oxygen sensor, which may eventually damage the catalytic converter (repair cost: $2,000–$2,200). Professional diagnosis costs around $200–$210. Oxygen sensors are often straightforward to replace — check your owner's manual for location and instructions. This issue should be addressed promptly to prevent further damage.
P0957 on the Dodge Charger
On the Dodge Charger, a secondary air injection pump that has seized due to moisture ingress is a common trigger for P0957. The fault is usually only present on cold starts and clears itself after two to three warm-up cycles, making it easy to overlook.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Vehicle: | Dodge Charger |
| Brand: | Dodge |
| Model: | Charger |
| Code: | P0957 |
P0957 Dodge Charger Symptoms
Check Engine Light
Illuminated Dodge Charger dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Dodge Charger
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Dodge Charger
Increased Emissions
Failed emissions test due to P0957
P0957 Code Structure
Understanding what each digit means in the P0957 powertrain trouble code:
| P | 0 | 9 | 5 | 7 |
|---|---|---|---|---|
| Powertrain Code | Intake Valve Control Solenoid Circuit Low | Injector Circuit Malfunction - Cylinders | Cylinder 1 Injector Circuit Low | Shift/Timing Solenoid Malfunction |
How to Fix Dodge Charger P0957
Diagnostic Steps:
Regarding P0957, carefully inspect the wire harness near the intake manifold bracket, best accessed from below near the oil filter. Look for chafing, pinching, or damaged insulation.
Repair Solution:
Verify all electrical connections are clean and tight. Check for damaged wiring, especially in high-heat or high-vibration areas. Use manufacturer wiring diagrams for accurate diagnosis.
Technical Notes:
P0957 on electronically controlled automatic transmissions relates to shift solenoid operation. The solenoid actuates hydraulic circuits controlling clutches or bands for gear changes.
Dodge Charger P0957 Repair Cost
On the Dodge Charger, secondary air injection pump replacement for a P0957 code runs $350–$600. Because the pump is only active during cold starts, symptoms are easily missed. Requesting a cold-start emissions test at the workshop will confirm whether the pump is operating.
P0957 Description
P0957 engine trouble code is related to Shift/Timing Solenoid Malfunction.
Main Cause
The primary reason for P0957 OBD-II Engine Trouble Code is: Injector Circuit Malfunction - Cylinders.
Common P0957 Misdiagnosis on the Dodge Charger
On the Dodge Charger, the VANOS (variable camshaft timing) solenoid is routinely replaced for P0957 when the actual issue is oil pressure insufficiency. No solenoid will operate correctly if the oil pressure required to actuate the VVT phaser is not present.
DIY Repair Guide: P0957 on Dodge Charger
The Dodge Charger EVAP purge solenoid valve is accessible without lifting the vehicle — it is mounted on the intake manifold and secured by a single bolt and a vacuum hose clip. DIY replacement is rated 1/5 difficulty and takes approximately 20 minutes.
Preventing P0957 on the Dodge Charger
Verify that the Dodge Charger engine air box lid clips are fully seated after any air filter service. An unsealed air box is a direct path for unmetered air past the MAF sensor and is an extremely common — and extremely embarrassing — cause of P0957.
Frequently Asked Questions — Dodge Charger P0957
A: Yes. Some fault conditions, particularly those involving EVAP system leaks or marginal sensor readings, store codes without producing noticeable drivability symptoms. These are called memory faults and still need to be addressed because they will eventually cause performance issues.