Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the fuel pressure is too low. Imagine trying to drink a milkshake through a straw, but the straw is too thin, so you can't get enough milkshake. The car feels like it's not getting enough fuel.
The engine control module (ECM) has detected that the fuel rail pressure is lower than expected. This can affect how well the engine runs.
P106E is a diagnostic trouble code for 'H2 Rail Pressure Too Low.' This indicates that the fuel rail pressure sensor is reporting a pressure reading lower than the threshold set by the manufacturer. This can be due to a malfunctioning sensor, a problem with the fuel pump, or a leak in the fuel system.
• Engine misfires
• Poor acceleration
• Check engine light on
• Faulty fuel pressure sensor
• Fuel pump failure
• Fuel line leak
Fuel Rail: A pipe that delivers fuel to the engine's fuel injectors.
ECM: Engine Control Module, the computer that controls engine functions.
• Check for any other related codes
• Inspect the fuel pressure sensor and wiring
• Test the fuel pressure with a gauge
• Replace the faulty fuel pressure sensor
• Repair or replace the fuel pump
• Fix any leaks in the fuel lines
• OBD-II scanner
• Fuel pressure gauge
• Multimeter
$200 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly maintain the fuel system
• Use high-quality fuel
• Inspect fuel lines for leaks
Engine Performance
• Do not ignore the check engine light
• Have the vehicle inspected by a professional
• Avoid driving aggressively until repaired
Check with your vehicle manufacturer for specific warranty coverage related to the fuel system.
This code has been associated with issues in vehicles with high mileage or those that have not been regularly maintained.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a fuel system issue can lead to safety risks and may not comply with emissions regulations.
• Engine at operating temperature
• Vehicle at idle
The fuel rail pressure sensor is typically located on the fuel rail near the engine.
Q: Can I drive my car with a P106E code?
A: It's not recommended to drive for long periods with this code, as it can lead to further engine issues.
Q: How can I reset the P106E code?
A: You can reset the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.