P1247 Isuzu Code - Low Fuel Pressure Regulator Circuit Low Voltage
Quick Answer
P1247 Isuzu indicates Low Fuel Pressure Regulator Circuit Low Voltage. Common causes include Faulty Low Fuel Pressure Regulator, Low Fuel Pressure Regulator harness is open or shorted, Low Fuel Pressure Regulator 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
- P1247 Isuzu indicates Low Fuel Pressure Regulator Circuit Low Voltage.
- Common causes
- Common causes include Faulty Low Fuel Pressure Regulator, Low Fuel Pressure Regulator harness is open or shorted, Low Fuel Pressure Regulator 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 P1247 Isuzu Description
What are the Possible Causes of the DTC P1247 Isuzu?
- Faulty Low Fuel Pressure Regulator
- Low Fuel Pressure Regulator harness is open or shorted
- Low Fuel Pressure Regulator circuit poor electrical connection
How to Fix the DTC P1247 Isuzu?
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 P1247 Isuzu 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 P1247 Isuzu Code
1. What does the OBDII code P1247 mean on an Isuzu vehicle?
It indicates "Low Fuel Pressure Regulator Circuit Low Voltage," meaning the fuel pressure regulator is not receiving the proper voltage signal from the ECU.
2. What are the common symptoms of code P1247 in an Isuzu?
Symptoms may include poor engine performance, difficulty starting, reduced fuel efficiency, stalling, or the check engine light being illuminated.
3. What causes the P1247 code to appear on an Isuzu?
Common causes include a faulty fuel pressure regulator, damaged wiring or connectors in the fuel pressure regulator circuit, a failing fuel pump, or issues with the ECU.
4. Can a clogged fuel filter trigger the P1247 code?
While a clogged fuel filter won’t directly cause low voltage in the fuel pressure regulator circuit, it can lead to low fuel pressure, which might contribute to related issues.
5. How do you diagnose the P1247 code on an Isuzu?
Diagnosis typically involves checking the fuel pressure regulator, inspecting the wiring and connectors for damage or corrosion, testing the fuel pump, and verifying the ECU output voltage.
6. Is it safe to drive with the P1247 code on an Isuzu?
Driving with this code is not recommended, as it may lead to poor engine performance, stalling, or further damage to the fuel system.
7. How can you fix the P1247 code on an Isuzu?
Repairs may include replacing the fuel pressure regulator, repairing damaged wiring or connectors, cleaning or replacing the fuel pump, or addressing ECU issues.
8. Can a bad battery cause the P1247 code in an Isuzu?
A weak or failing battery can contribute to low voltage issues in the fuel pressure regulator circuit, but it’s less common than other causes.
9. What tools are needed to troubleshoot the P1247 code?
You’ll need an OBDII scanner, a multimeter for voltage testing, and possibly a fuel pressure gauge to diagnose the code properly.
10. How much does it cost to repair the P1247 code on an Isuzu?
Repair costs vary but typically range from $100 to $500, depending on whether the issue lies with the regulator, wiring, or fuel pump.
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