P0264: Cylinder 2 Injector Circuit Low
Can you still drive? You can drive short distances, but the engine will misfire. Extended driving can overheat and damage the catalytic converter.
What Does P0264 Mean?
Code P0264 indicates a low voltage condition in the cylinder 2 fuel injector circuit. The ECM cannot properly drive the injector, which may result in insufficient fuel delivery to cylinder 2. This will cause a lean misfire and rough engine operation.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Faulty cylinder 2 fuel injector
- Open or broken wire in injector circuit
- Corroded injector connector
- Failed ECM injector driver
Symptoms
- Check engine light on
- Rough idle
- Misfire on cylinder 2
- Engine vibration
- Reduced power
Diagnostic Steps
- 1Scan for companion misfire codes on cylinder 2
- 2Measure injector resistance with a multimeter
- 3Inspect wiring and connector at cylinder 2 injector
- 4Swap injector with another cylinder to isolate fault
- 5Check ECM pin voltages for injector driver output
Recommended Parts & Tools
fuel injector
injector connector pigtail
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $100 - $500 |
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Chat with AI About P0264Commonly Affected Vehicles
Related Recalls
1 Active Recall — 2026 Toyota Corolla
The following NHTSA safety recalls have been issued for this vehicle. Contact your dealer to check if your vehicle is affected.
EXTERIOR LIGHTING:HEADLIGHTS
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2026 Corolla vehicles. The front headlights may have missing headlight aim markings, which can result in improperly aimed headlights during service. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Remedy: Dealers will replace both front headlight assemblies, free of charge. Owner notification letters are expected to be mailed April 12, 2026. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's number for this recall is 26TA05.
Data provided by the National Highway Traffic Safety Administration (NHTSA).
Frequently Asked Questions
How do I know if it's the injector or wiring?
Swap the cylinder 2 injector with another cylinder. If the code follows the injector, replace it. If the code stays on cylinder 2, it's a wiring issue.
Can a low injector circuit cause a misfire?
Yes, if the injector cannot open properly due to low voltage, cylinder 2 won't receive fuel and will misfire.
Community Fix Reports
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Related Codes
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