Chrysler DTC P1691 – Fuel Injection Pump Controller Calibration Failure
DTC P1691 meaning on Chrysler
DTC P1691 on Chrysler indicates a Fuel Injection Pump Controller Calibration Failure. This diagnostic trouble code is specific to Chrysler vehicles and relates to a malfunction in the calibration of the fuel injection pump controller.
Chrysler DTC P1691 symptoms
Symptoms of DTC P1691 on a Chrysler vehicle may include:
- Check Engine Light illuminated
- Engine performance issues
- Difficulty starting the engine
- Reduced fuel efficiency
Chrysler DTC P1691 causes
The common causes of DTC P1691 on Chrysler vehicles are:
- Issues with the fuel injection pump controller
- Calibration errors in the fuel injection system
- Electrical faults related to the fuel injection system
Chrysler DTC P1691 seriousness
DTC P1691 should not be ignored as it can lead to poor engine performance and potential fuel system issues. Ignoring this code may result in further damage to the vehicle’s fuel injection system and decreased overall efficiency.
How to diagnose DTC P1691 on Chrysler
To diagnose DTC P1691 on a Chrysler vehicle, a mechanic would typically:
- Use a diagnostic scanner to retrieve the specific fault code
- Inspect the fuel injection pump controller for any visible damage or signs of malfunction
- Check the wiring and connections related to the fuel injection system
- Perform a calibration check on the fuel injection pump controller
How to fix DTC P1691 on Chrysler
To fix DTC P1691 on a Chrysler vehicle, the following steps may be taken:
- Repair or replace the fuel injection pump controller if faulty
- Calibrate the fuel injection system according to manufacturer specifications
- Address any electrical issues affecting the fuel injection system
- Clear the fault code and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1691 on Chrysler
To erase DTC P1691 on a Chrysler vehicle, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made and the issue resolved, the code can be cleared to reset the Check Engine Light and ensure the system is functioning properly.
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