P0002 Code - Fuel Volume Regulator Control Circuit Range/Performance
Quick Answer
This fault code is stored in the engine control module when the system cannot correctly control the fuel pressure. Common causes include Faulty Fuel Volume Regulator (FVR) Control Valve, Fuel Volume Regulator Control Valve harness is open or shorted, Fuel Volume Regulator Control Valve 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
- P0002 indicates Fuel Volume Regulator Control Circuit Range/Performance.
- Common causes
- Common causes include Faulty Fuel Volume Regulator (FVR) Control Valve, Fuel Volume Regulator Control Valve harness is open or shorted, Fuel Volume Regulator Control Valve 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 P0002 Description
Normally manufacturers will support data parameters for actual and desired fuel pressure.
A number of issues may cause this fault code to be set such as a faulty fuel rail pressure sensor, a mechanical fault with the fuel volume regulator could cause the valve to become stuck. An electrical fault such as an open circuit in the fuel volume regulator on a system with a normally closed valve will also cause this situation. A short circuit on the control wire of a normally open fuel volume regulator will also cause this fault.
A fault in the fuel injector return system will cause the fuel pressure to be lower than expected. This causes fuel from the high-pressure circuit to be leaked back to the low-pressure circuit. A faulty maximum pressure relief valve will also cause this situation.
The high-pressure pump should also be tested to ensure it is capable of delivering the required volume of fuel.
What are the Possible Causes of the DTC P0002?
- Faulty Fuel Volume Regulator (FVR) Control Valve
- Fuel Volume Regulator Control Valve harness is open or shorted
- Fuel Volume Regulator Control Valve circuit poor electrical connection
How to Fix the DTC P0002?
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 P0002 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.
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Frequently Asked Questions about P0002 Code
1. What are common symptoms of OBDII code P0002?
- Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and potential stalling.
2. What does the OBDII code P0002 indicate?
- The code P0002 indicates a problem with the fuel volume regulator control circuit, specifically related to range or performance issues.
3. What are the possible causes of OBDII code P0002?
- Potential causes of this code include a faulty fuel volume regulator, issues with the fuel pump, wiring problems, or a malfunctioning fuel pressure sensor.
4. How can I diagnose the cause of OBDII code P0002?
- Diagnosis typically involves inspecting the fuel volume regulator, checking the fuel pump operation, testing the fuel pressure sensor, and examining the related wiring for any damage or loose connections.
5. Can OBDII code P0002 be fixed without professional help?
- Depending on your mechanical skills, you may be able to fix this issue by replacing the faulty components, such as the fuel volume regulator or sensor. However, professional help is recommended for accurate diagnosis and repair.
6. Are there any quick repair tips for OBDII code P0002?
- Quick repair tips include checking the fuel system for any visible signs of damage, ensuring all connections are secure, and clearing the code to see if it reappears after repairs.
7. Is it safe to continue driving with OBDII code P0002?
- It is not recommended to drive with this code present as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.
8. How much does it typically cost to repair OBDII code P0002?
- The cost of repair can vary depending on the root cause of the issue, but it may range from a few hundred to a couple of thousand dollars, including parts and labor.
9. Can a simple reset of the OBDII system clear code P0002?
- While clearing the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the code. It's essential to diagnose and address the root cause of the problem.
10. Will OBDII code P0002 cause a vehicle to fail an emissions test?
- Yes, OBDII code P0002 can cause a vehicle to fail an emissions test as it indicates a problem with the fuel volume regulator control circuit, which can impact emissions levels.
Discuss the causes and fixes for P0002 OBDII Code
-
Hi,
I have a Saab 93 TTID Aero. I have fault codes P0001, P0002 and P0087! I also have limited performance message on dash!
Can you help me in locating the problem?
Thanks
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