What Causes Injector Circuit Open?

1 Answers
MakaylaLynn
07/30/25 8:27am
Injector circuit open is caused by rail pressure sensor and related faults. Injector leakage: No response when starting may also be due to injector issues such as leakage or excessive carbon buildup, resulting in an overly lean air-fuel mixture during startup and difficulty in ignition. Additionally, when the charcoal canister or its solenoid valve malfunctions, it can also lead to starting difficulties. Engine carbon deposits: This non-starting phenomenon may primarily be caused by excessive carbon buildup in the idle speed control valve, intake passages, intake valves, and combustion chambers. Due to excessive carbon deposits and dirt in the intake passages, the cross-sectional area of the air passages changes, leading to an overly rich or lean air-fuel mixture, causing abnormal combustion or engine shaking after startup, or even complete failure to start.
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