The code P062A: Fuel Pump “A” Control Circuit Range/Performance indicates a fault in the fuel pump control circuit, specifically relating to its range or performance. This issue is often caused by a faulty fuel pump, issues in the electrical connections, a malfunctioning fuel pump control module, or wiring problems in the circuit.
P062A quick overview
| Description | P062A: Fuel Pump “A” Control Circuit Range/Performance |
| Is it serious? | Yes, this code is serious as it can lead to engine performance issues, stalling, and potentially cause the vehicle to be inoperable. |
| Possible causes | – Faulty fuel pump – Poor electrical connection in the fuel pump circuit – Faulty fuel pump control module – Wiring issues in the fuel pump circuit |
| How to diagnose? | Check Fuel Pump: Inspect the fuel pump for any physical damage or failure signs. Inspect Electrical Connections: Ensure all connections in the fuel pump circuit are secure and undamaged. Test Fuel Pump Control Module: Evaluate the functionality of the fuel pump control module. Examine Wiring: Look for any damage or issues in the wiring of the fuel pump circuit. |
P062A Meaning
P062A means there’s a problem with the part of your car that controls the fuel pump, which is like the heart of your car’s engine. If this part isn’t working right, your car might not run smoothly, could stall, or even not start at all. It’s important to check the fuel pump, its connections, and the control module to make sure everything is working properly to avoid these issues.
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How to fix P062A – learn from mechanics
I looked into P062A service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.
Case #1: Ford
Vehicle Information: 2019 Ford Explorer 3.5L
Issue + Repair History:
- MIL with P062A code.
- Intermittent stalling at low speeds.
Other OBD2 Codes + Test Results:
Suggestions to Fix Issue:
- Replace fuel pump.
- Check for wiring issues in fuel pump circuit.
- Inspect oxygen sensors for proper functionality.
Final Fix:
- Replaced fuel pump and repaired damaged wiring in fuel pump circuit.
Case #2: Chevrolet
Vehicle Information: 2017 Chevrolet Impala 3.6L
Issue + Repair History:
- P062A code and poor acceleration.
- Previously replaced fuel filter.
Other OBD2 Codes + Test Results:
Suggestions to Fix Issue:
- Test fuel pump pressure.
- Inspect fuel pump control module.
- Check for air intake leaks.
Final Fix:
- Replaced faulty fuel pump control module.
Case #3: GMC
Vehicle Information: 2018 GMC Sierra 1500 5.3L
Issue + Repair History:
- MIL on, code P062A.
- Engine hesitation during acceleration.
Other OBD2 Codes + Test Results:
Suggestions to Fix Issue:
- Inspect EVAP system for leaks.
- Evaluate fuel pump performance.
- Check electrical connections to fuel pump.
Final Fix:
- Repaired a leak in the EVAP system and replaced the fuel pump.
Case #4: Audi
Vehicle Information: 2016 Audi A4 2.0T
Issue + Repair History:
- P062A code, engine stalling.
- Rough idle observed.
Other OBD2 Codes + Test Results:
- P2293 – Fuel Pressure Regulator 2 Performance
Suggestions to Fix Issue:
- Replace high-pressure fuel pump.
- Check for blockages in fuel lines.
- Inspect fuel pressure regulator.
Final Fix:
- High-pressure fuel pump replaced and fuel lines cleared of blockages.
Case #5: BMW
Vehicle Information: 2015 BMW 328i 2.0L
Issue + Repair History:
- Persistent P062A code.
- Reduced engine power and poor fuel economy.
Other OBD2 Codes + Test Results:
Suggestions to Fix Issue:
- Inspect and replace oxygen sensors if necessary.
- Evaluate fuel pump and its circuitry.
- Check for vacuum leaks in the intake system.
Final Fix:
- Oxygen sensor replaced and fuel pump circuitry repaired.
How to diagnose P062A
I made you an overview of solving this DTC, based on all the advice that was suggested by certified mechanics to address this issue in previously mentioned service cases.
| Common Advice for Solving Code P062A | Brief Description of Diagnostic Step |
|---|---|
| Inspect Fuel System for Leaks | Check the entire fuel system for any signs of leaks, which can impact fuel pressure. |
| Test Fuel Pump and Pressure | Evaluate the fuel pump’s operation and measure fuel pressure to ensure it meets specifications. |
| Check Electrical Connections to Fuel Pump | Inspect all electrical connections to the fuel pump for corrosion, damage, or loose fittings. |
| Review Fuel Pump Control Module | Examine the fuel pump control module for faults or failure signs, and test its functionality. |
| Analyze Related Engine Codes | Look into other engine codes that appeared alongside P062A to diagnose related or underlying issues. |
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko