Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1995 Acura 2.5TLFACTORY OEM SERVICE PROCEDURE
Code P0300 - Random Misfire
- If any of the following codes are set, service them first:
- P0101, P0102, P0103
- P0171, P0172
- P0505
- P0335, P0336
- P1359, P1361, P1362
- P1381, P1382
- P1508
- Test-drive vehicle under conditions at which the problem occurred. If the problem occurs only under low RPM and low load, go to next step. If the problem occurs only under acceleration, go to step 4). If the problem occurs only high RPM and high load, go to step 5). If the problem occurs under other conditions, go to step 6). If misfire doesn't recur, other possible causes are poor fuel, lack of fuel, or deposits on spark plugs. See MISFIRE TEST ITEMS .MISFIRE TEST ITEMS
Problem Area Test Item EGR System 1 MAF Sensor 2 CKP Sensor 3 Fuel Pressure 4 Ignition System 5 Ignition Control Module 6 Valve Adjustment 7 Idle Air Control Valve 8 Air Cleaner Element 9 - Inspect misfire test items in the following order: 9, 8, 2, 1, 4, 3, and 7. See MISFIRE TEST ITEMS . Correct defects as necessary.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.