U0073 DTC Code – Fuel Pressure Regulator 2 Performance: Causes, Symptoms & Fixes

DTC Code U0073 indicates a communication failure affecting Fuel Pressure Regulator 2. Learn about its symptoms, causes, and step-by-step fixes. Discover affordable, quality-tested used parts at NayaPurana to solve the issue and keep your car running smoothly.

DTC Code U0073 – Fuel Pressure Regulator 2 Performance

DTC Code U0073 refers to a malfunction in the communication bus (CAN), specifically affecting the performance of Fuel Pressure Regulator 2. This code appears when the Engine Control Module (ECM) fails to receive proper data from the regulator, disrupting fuel pressure balance and engine performance.

🔍 Common Symptoms of U0073 Code

• Check Engine Light ON

• Poor fuel economy

• Hard starting or no start

• Rough idling

• Loss of engine power

• Engine misfire or hesitation

⚠️ Possible Causes

• Faulty Fuel Pressure Regulator 2

• Corroded or damaged CAN wiring

• Loose or damaged electrical connectors

• Failed Engine Control Module (ECM)

• Short circuit in communication lines

• Low battery voltage or charging issues

🔧 How to Fix DTC U0073

1. Scan the car with OBD-II scanner to verify U0073 and other related codes.

2. Inspect CAN wiring harness for corrosion, disconnection, or damage.

3. Check battery voltage – weak battery can interfere with communication.

4. Test Fuel Pressure Regulator 2 for output voltage and function.

5. Replace damaged connectors or faulty fuel pressure regulator if needed.

6. Reset the code and test drive to ensure it doesn’t return.

🛠️ Spare Parts You Might Need

• Fuel Pressure Regulator 2 – New & Used Options at NayaPurana

• Engine Control Module (ECM)

• CAN Bus Wiring Connectors

• Battery & Alternator Components

📌 Pro Tips from NayaPurana

• Always start by inspecting wiring before replacing costly sensors.

• Use a multimeter to test sensor voltage.

• If your car recently underwent repairs, double-check reconnected plugs and grounds.

• Use only genuine or high-quality used parts to maintain performance and safety.

🔗 Related Guides:

• Top Reasons for Fuel Pressure Sensor Failures

• Used vs New Fuel System Parts – What’s Better?

• How to Identify a Faulty Fuel Pump or Regulator

💡 Why Buy from NayaPurana?

• Affordable used & refurbished OEM parts

• Trusted quality checks & warranty

• PAN India delivery and easy returns

• Save up to 50% vs new parts

U0073 may seem complex, but with proper diagnostics and the right parts from NayaPurana, your vehicle will be running smoothly in no time.