AutoCodes – Dodge – P1690 Dodge

P1690 Dodge Code - Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor

Quick Answer

Fuel Injection Pump Crankshaft Position (CKP) circuit is monitored when the ignition is on, and the engine is running. Common causes include AC Noise Across Fuel Transfer Pump, Other DTCs Present, Wiring & Connectors. 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 Dodge indicates Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor.
Common causes: Common causes include AC Noise Across Fuel Transfer Pump, Other DTCs Present, Wiring & Connectors.
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 Popularity 9,998

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1690 Dodge Description

Fuel Injection Pump Crankshaft Position (CKP) circuit is monitored when the ignition is on, and the engine is running. The P1690 code may be stored when no signal exists within specified window parameters with no Camshaft Position (CMP) sensor or CKP DTCs present.

OBDII Code P1690 Dodge - Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor - AutoCodes.com — P1690 Dodge Code - Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP Sensor

What does this mean?

What are the Possible Causes of the DTC P1690 Dodge?

AC Noise Across Fuel Transfer Pump
Other DTCs Present
Wiring & Connectors
Fuel Injection Pump Static Timing
Fuel Sync Signal Circuit Open
Fuel Sync Signal Circuit Short To Ground
Engine Control Module (ECM)

How to Fix the DTC P1690 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1690 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1690 Dodge code?

Need more information on how to fix the P1690 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1690 Dodge code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P1690 Dodge Code

1. What are the common symptoms of OBDII code P1690 in a Dodge related to the Fuel Injection Pump CKP Sensor disagreement with the ECM CKP Sensor?

- Common symptoms include engine stalling, rough idling, lack of power, and possibly difficulty starting the vehicle.

2. What are the possible causes of OBDII code P1690 in a Dodge related to the Fuel Injection Pump CKP Sensor discrepancy?

- Potential causes include a faulty fuel injection pump, issues with the CKP sensor, wiring problems, or a malfunctioning ECM.

3. How can I diagnose the issue causing OBDII code P1690 in my Dodge?

- Diagnosis typically involves checking the CKP sensor for proper operation, inspecting the fuel injection pump, and testing the wiring and connections for any faults.

4. Can driving with OBDII code P1690 in a Dodge cause further damage to the vehicle?

- Continuing to drive with this code present can potentially lead to more severe engine issues, so it's best to address the problem promptly.

5. What are some repair tips for resolving OBDII code P1690 in a Dodge related to the Fuel Injection Pump CKP Sensor disagreement?

- Repair tips may include checking and replacing the CKP sensor, inspecting the fuel injection pump for proper function, and ensuring all wiring connections are secure.

6. Is it safe to continue driving my Dodge if I have cleared the OBDII code P1690 but the issue persists?

- It is not recommended to drive the vehicle if the problem causing the code persists, as it could lead to further damage and potential safety hazards.

7. How much does it typically cost to repair OBDII code P1690 in a Dodge?

- The cost of repairs can vary depending on the specific issue causing the code, but it may involve sensor replacement, pump repairs, or wiring fixes.

8. Can I fix OBDII code P1690 in my Dodge myself, or should I take it to a professional mechanic?

- If you have experience with automotive repairs and diagnostics, you may attempt to fix the issue yourself. However, consulting a professional mechanic is recommended for accurate diagnosis and proper repair.

9. How long does it usually take to repair OBDII code P1690 in a Dodge?

- The repair time can vary based on the exact cause of the issue and the complexity of the repair needed. It's best to consult with a mechanic for a more accurate estimate.

10. Are there any preventive measures I can take to avoid encountering OBDII code P1690 in my Dodge in the future?

- Regular maintenance, such as checking and servicing the fuel system components and sensors, can help prevent issues that may trigger OBDII code P1690.