Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer has noticed a problem with the first cylinder in the engine. It's not working right when using a different kind of fuel, like natural gas or ethanol, instead of regular gasoline.
The engine control module (ECM) has detected a misfire in cylinder 1 when the vehicle is operating on alternative fuel.
The P2E59 code is triggered when the ECM detects that cylinder 1 is not firing properly while the engine is running on an alternative fuel source. This can happen due to issues with fuel delivery, ignition, or compression in the cylinder.
• Check Engine Light is on
• Rough engine idle
• Poor fuel economy
• Loss of power
• Engine hesitation or stalling
• Faulty spark plug in cylinder 1
• Clogged fuel injector for cylinder 1
• Low compression in cylinder 1
• Faulty ignition coil
• Fuel quality issues with alternative fuel
ECM: Engine Control Module, the computer that controls engine functions.
Misfire: A failure of the air/fuel mixture in a cylinder to ignite properly.
• Use an OBD-II scanner to confirm the code.
• Inspect the spark plug and ignition coil for cylinder 1.
• Check the fuel injector for clogs or damage.
• Perform a compression test on cylinder 1.
• Verify the quality of the alternative fuel being used.
• Replace the spark plug in cylinder 1.
• Clean or replace the fuel injector for cylinder 1.
• Replace the ignition coil if faulty.
• Repair engine mechanical issues causing low compression.
• Ensure the use of high-quality alternative fuel.
• OBD-II scanner
• Spark plug wrench
• Fuel injector cleaner
• Compression tester
• Multimeter
$100 - $500
Moderate
• Chevrolet Impala Bi-Fuel
• Ford F-150 CNG
• Honda Civic Natural Gas
• Regular maintenance of ignition components
• Use high-quality alternative fuels
• Regularly clean fuel injectors
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Use recommended fuel types and grades.
• Schedule regular maintenance checks.
Check with the vehicle manufacturer for warranty coverage on engine components.
This code is more common in vehicles designed to run on multiple types of fuel, as alternative fuels can sometimes cause misfire issues.
Moderate – Addressing this issue promptly can prevent engine damage and improve performance.
Driving with a misfire can lead to increased emissions and potential engine damage.
• Engine running on alternative fuel
• Vehicle at operating temperature
Cylinder 1 is typically located at the front of the engine, on the side where the timing belt or chain is located.
Q: Can I drive with a P2E59 code?
A: It's not recommended to drive with this code active, as it can lead to engine damage and decreased performance.
Q: What fuels are considered alternative fuels?
A: Alternative fuels include natural gas, ethanol, propane, and hydrogen, among others.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
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.
View on Amazon
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.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
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.
View options on Amazon
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.