How to Deal with Irregular Misfires in Honda's 1-2-3-4 Cylinders When Accelerating?
2 Answers
Honda's irregular misfires in cylinders 1-2-3-4 when accelerating can be caused by the following reasons and solutions: 1. The causes of engine misfires include clogged or damaged spark plugs, faulty cylinder wires, problematic ignition coils, or issues with fuel injectors such as clogging or low voltage. Problems with the air-fuel mixture or cylinder pressure can also lead to engine misfires. 2. If you encounter engine misfires, you can shift to neutral, engage the handbrake, and forcefully press the accelerator to ensure the engine speed exceeds 4000 RPM, maintaining this for 1 to 2 minutes. Generally, if the blockage is not too severe, the issue can be alleviated.
I encountered a similar situation last month with that old Accord - it would shake like having asthma during acceleration. First checked the spark plugs and found one electrode nearly burnt out. Replacing all four spark plugs showed significant improvement. But the problem returned after two days, with the scanner showing misfire in cylinder 3. The veteran mechanic suggested checking the ignition coils, and we found two coil rubber boots cracked and leaking oil (which causes high-voltage leakage). After replacing the coils didn't solve it, we finally discovered the fuel injector was half-clogged by low-quality gasoline. My advice: don't rush into major repairs - first use a diagnostic tool to identify which cylinder is misfiring for targeted troubleshooting, saving unnecessary costs. Remember to add a bottle of quality fuel system cleaner to your tank - Honda engines can be quite particular about fuel quality.
