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What to Do If the Fuel Injector Fails?

1 Answers

JohnMarie

07/30/25 10:41am

If the fuel injector fails, it should be disassembled and repaired. Below are the relevant details: 1. If the fuel injector fails, it should be disassembled and repaired. If the damage is severe, it should be replaced. After replacement, the injection pressure should be adjusted to 22-0.5Pa, ensuring good spray performance without dripping. Regularly clean the fuel filter to prevent excessive impurities in the fuel from clogging the injector. 2. To diagnose engine injector faults, run the engine at idle and perform a fuel cut-off test on each cylinder sequentially. When the fuel supply to a specific cylinder's injector is stopped, observe the engine's operation and sound. If the exhaust stops emitting black smoke after the fuel cut-off and the engine speed changes, it indicates a fault with that cylinder's injector. Once the engine injector fault is accurately diagnosed, disassemble the injector and test it on an injector calibration bench.

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