P1290 Chrysler Code - CNG Fuel System Pressure Too High Condition
Quick Answer
P1290 Chrysler indicates CNG Fuel System Pressure Too High Condition. Common causes include Faulty CNG Shut Off Relay, CNG Shut Off Relay harness is open or shorted, CNG Shut Off Relay circuit poor electrical connection. 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
- P1290 Chrysler indicates CNG Fuel System Pressure Too High Condition.
- Common causes
- Common causes include Faulty CNG Shut Off Relay, CNG Shut Off Relay harness is open or shorted, CNG Shut Off Relay circuit poor electrical connection.
- 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.
Code P1290 Chrysler Description
What are the Possible Causes of the DTC P1290 Chrysler?
- Faulty CNG Shut Off Relay
- CNG Shut Off Relay harness is open or shorted
- CNG Shut Off Relay circuit poor electrical connection
How to Fix the DTC P1290 Chrysler?
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 P1290 Chrysler 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 P1290 Chrysler code?
Need more information on how to fix the P1290 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1290 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1290 Chrysler Code
What does OBDII code P1290 mean for a Chrysler vehicle?
Code P1290 indicates that the pressure in the Compressed Natural Gas (CNG) fuel system is higher than expected, which could affect engine performance and safety.
What are common symptoms of P1290 on a Chrysler?
Symptoms may include poor engine performance, difficulty starting the engine, reduced fuel efficiency, or the Check Engine Light being illuminated.
What causes the P1290 code to trigger?
Common causes include a faulty pressure sensor, a malfunctioning fuel pressure regulator, a clogged fuel line, or issues with the CNG tank or valve.
Can I drive my Chrysler with the P1290 code active?
It is not recommended to drive the vehicle until the issue is resolved, as high fuel pressure can lead to safety concerns and potential damage to the engine.
How is the P1290 code diagnosed?
Technicians typically use a diagnostic scanner to confirm the code, inspect the fuel pressure sensor, regulator, and system components, and perform pressure tests to identify the root cause.
What repairs can fix the P1290 code?
Repairs may include replacing the fuel pressure sensor, repairing or replacing the regulator, clearing blockages in the fuel line, or servicing the CNG tank and valves.
How much does it typically cost to repair a P1290 code?
Repair costs vary depending on the cause but can range from $100 to $500 or more, especially if major components like the pressure regulator need replacement.
Can the P1290 code be caused by electrical issues?
Yes, wiring or connector problems related to the fuel pressure sensor can also trigger this code.
What maintenance can help prevent the P1290 code?
Regular inspections of the CNG fuel system, including pressure sensor calibration and cleaning fuel lines, can help prevent issues that lead to this code.
Is the P1290 code specific to Chrysler vehicles?
While P1290 is a generic OBDII code, the “CNG Fuel System Pressure Too High Condition” is specific to vehicles equipped with a CNG system, including certain Chrysler models.
Discuss the causes and fixes for P1290 Chrysler OBDII Code
Code P1290 Chrysler comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
