P0092
UniversalThe Powertrain Control Module (PCM) detects a high voltage condition in the control circuit for the fuel pressure regulator.
High SeverityThe P0092 code indicates that the vehicle's computer has detected an unusually high voltage in the control circuit that manages the Fuel Pressure Regulator. This typically means the regulator is receiving too much command voltage, leading to incorrect fuel pressure and potentially impacting engine performance or causing a rich fuel condition.
⚠️ Before You Begin (Safety First)
Always exercise caution when working with fuel systems, as fuel is highly flammable and under high pressure. Ensure the engine is cool and disconnect the battery before attempting any repairs. Wear appropriate safety gear, including eye protection.
Common Symptoms
- Check Engine Light illuminated
- Rough idling
- Poor acceleration
- Reduced fuel economy
- Engine running rich (black smoke from exhaust)
- Hard starting
- Engine stalling
Common Causes
- Short to voltage in the fuel pressure regulator control circuit
- Faulty fuel pressure regulator
- Damaged wiring or connectors in the control circuit
- Faulty Powertrain Control Module (PCM) (rare)
Frequently reported on: Ford F-150 (2004-2008), Chevrolet Silverado (2007-2013), Dodge Ram 1500 (2009-2015), Honda Civic (2006-2011), Toyota Camry (2007-2011)
Diagnostic Steps
- Inspect wiring and connectors leading to the fuel pressure regulator for signs of damage, corrosion, or short circuits.
- Using a multimeter, test for proper voltage and continuity in the fuel pressure regulator control circuit.
- Test the resistance of the fuel pressure regulator itself, if accessible, and compare to manufacturer specifications.
- Clear the code and test drive the vehicle to see if the code returns.
- Consider professional diagnosis if the issue persists after these steps.
👨🔧 When to Call a Professional
If basic wiring checks do not resolve the issue, or if you are uncomfortable performing electrical diagnostics or working with high-pressure fuel system components, it is best to consult a certified mechanic.
Commonly Asked Questions
What does P0092 mean for my car?
P0092 indicates that the engine's computer has detected an abnormally high voltage in the electrical circuit that controls the fuel pressure regulator, which manages how much fuel pressure is delivered to the engine.
Is it safe to drive with a P0092 code?
It is generally not recommended to drive with a P0092 code. High fuel pressure can cause the engine to run too rich, leading to poor performance, reduced fuel economy, increased emissions, and potential damage to the catalytic converter or engine components.
What tools do I need to fix P0092?
You will likely need an OBD-II scanner to read and clear codes, a multimeter to test electrical circuits, and potentially a fuel pressure gauge to verify fuel system pressure.
How much does it cost to fix a P0092 code?
The cost varies significantly. If it's a simple wiring issue, it could be inexpensive. If the fuel pressure regulator needs replacement, parts can range from $50 to $300, plus labor. If the PCM is at fault (rare), it could be much more expensive.
Can I replace the fuel pressure regulator myself?
Many DIYers can replace a fuel pressure regulator, but it requires careful handling of fuel and electrical connections. Ensure you have the correct tools and follow safety procedures, especially regarding depressurizing the fuel system.