P0302 Honda - Cylinder Number 2 Misfire Detected
Repair Importance Level:
Repair Difficulty Level:
- Faulty spark plug 2
- Clogged or faulty fuel injector 2
- Faulty ignition coil 2
- Fuel injector 2 harness is open or shorted
- Fuel injector 2 circuit poor electrical connection
- Ignition coil 2 harness is open or shorted
- Ignition coil 2 circuit poor electrical connection
- Insufficient cylinder 2 compression
- Incorrect fuel pressure
- Intake air leak
The P0302 code means that the cylinder 2 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 2. If the problem persist more tests needs to be done to diagnose problem, see "Possible Causes"
When is the code detected?
Engine Cylinder 2 is Misfiring.
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
P0302 Honda Description
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.
P0302 Honda Information for specific Honda models
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HONDA Technical Service Bulletins for P0302 code
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2010 HONDA PILOT Electrical System: Software Details
2011 HONDA PILOT Power Train:automatic Transmission:control Module (tcm, Pcm) Details
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