P1690 Chrysler Code - Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor
Quick Answer
The P1690 Chrysler code indicates that there is a discrepancy between the Fuel Injection Pump Crankshaft Position (CKP) sensor and the Engine Control Module (ECM) CKP sensor. Common causes include Faulty Fuel Injection Pump CKP sensor, Faulty ECM CKP sensor, Wiring issues or shorts in the sensor circuit. 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
- P1690 Chrysler indicates Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor.
- Common causes
- Common causes include Faulty Fuel Injection Pump CKP sensor, Faulty ECM CKP sensor, Wiring issues or shorts in the sensor circuit.
- 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.
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Code P1690 Chrysler Description
The P1690 Chrysler code indicates that there is a discrepancy between the Fuel Injection Pump Crankshaft Position (CKP) sensor and the Engine Control Module (ECM) CKP sensor. The CKP sensor is responsible for monitoring the position and speed of the crankshaft, which is crucial for the proper timing of fuel injection and ignition in the engine. When these sensors do not agree, it can lead to issues with the engine's performance and efficiency.
Common Causes of P1690 Chrysler
- Faulty Fuel Injection Pump CKP sensor
- Faulty ECM CKP sensor
- Wiring issues or shorts in the sensor circuit
- Faulty engine control module
- Poor electrical connections
Symptoms of P1690 Chrysler
- Engine misfires
- Rough idling
- Poor acceleration
- Decreased fuel economy
- Check Engine Light illuminated
How to Fix P1690 Chrysler
- Diagnose the issue using a scan tool to confirm the P1690 code and identify the specific sensor causing the problem.
- Inspect the wiring and connections for any signs of damage or corrosion. Repair or replace as needed.
- Test the Fuel Injection Pump CKP sensor and ECM CKP sensor for proper functionality. Replace any faulty sensors.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying issues with the engine control module.
Cost to Fix P1690 Chrysler
The typical repair costs for addressing a P1690 Chrysler code can vary depending on the specific cause of the issue. In general, replacing a faulty sensor or repairing wiring issues can range from $200 to $500, including parts and labor. However, additional costs may apply if further diagnostics or repairs are needed. It's important to consult with a qualified mechanic to get an accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates can vary based on location and the type of repair facility.
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