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P1293 Chrysler Code - Compressed Natural Gas Pressure Sensor Signal Too Low

Quick Answer

The P1293 Chrysler code indicates that the Compressed Natural Gas (CNG) pressure sensor signal is too low. Common causes include Faulty CNG pressure sensor, Wiring issues in the sensor circuit, CNG system leak causing low pressure. 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
P1293 Chrysler indicates Compressed Natural Gas Pressure Sensor Signal Too Low.
Common causes
Common causes include Faulty CNG pressure sensor, Wiring issues in the sensor circuit, CNG system leak causing low pressure.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1293 Chrysler Description

The P1293 Chrysler code indicates that the Compressed Natural Gas (CNG) pressure sensor signal is too low. This sensor is responsible for monitoring the pressure of the CNG system, which is crucial for the proper functioning of the vehicle when running on natural gas. When the sensor signal is too low, it can lead to a variety of issues that can affect the vehicle's performance.

OBDII Code P1293 Chrysler - Compressed Natural Gas Pressure Sensor Signal Too Low
P1293 Chrysler Code - Compressed Natural Gas Pressure Sensor Signal Too Low

Common Causes of P1293 Chrysler

  1. Faulty CNG pressure sensor
  2. Wiring issues in the sensor circuit
  3. CNG system leak causing low pressure
  4. Malfunctioning CNG pressure regulator

Symptoms of P1293 Chrysler

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Loss of power
  4. Engine misfires
  5. Stalling of the engine

How to Fix P1293 Chrysler

  1. Perform a diagnostic scan to confirm the P1293 code and identify the specific cause.
  2. Inspect the CNG pressure sensor and its wiring for any signs of damage or corrosion.
  3. Check the CNG system for leaks or pressure issues that could be causing the low sensor signal.
  4. Replace the faulty CNG pressure sensor or repair any wiring issues as needed.
  5. Test drive the vehicle to ensure the issue has been resolved and the check engine light is no longer illuminated.

Cost to Fix P1293 Chrysler

The typical repair costs for addressing a P1293 Chrysler code can vary depending on the exact cause of the issue. This may range from $100 to $500, including parts and labor. It is important to keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

When is the Code Detected?

The Engine Control Module (ECM) has detected the sensor signal voltage below 0.49 volts

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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