2024年12月25日 · A P0204 code indicates a malfunction in the fuel injector circuit for cylinder 4, affecting engine performance and fuel efficiency. Common causes include a faulty fuel injector, wiring or connection issues, electrical surges, ECM malfunction, and fuel delivery problems.

2024年3月23日 · What are common symptoms of OBDII code P0204 (Injector Circuit Malfunction Cylinder 4)? - Common symptoms include rough idling, engine misfires, poor fuel efficiency, and potentially a noticeable decrease in engine performance.

P0204 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled "low" or close to zero.

2025年1月24日 · Diagnostic fault code P0204 is indicative of an open on otherwise non-responsive circuit associated with an engine’s #4 fuel injector. Simply put, a vehicle’s ECM/PCM has determined that the engine’s #4 fuel injector is not firing as called for.

2025年2月6日 · The P0204 code primarily indicates an issue with the injector circuit for cylinder 4. The most immediate part affected is the fuel injector itself. If it fails, you might experience poor engine performance.

2022年9月16日 · The Diagnostic Trouble Code (DTC) P0204 stands for “Injector Circuit Problem—Cylinder 4.” A dormant injector will have a voltage close to the battery voltage, whereas an active one will have a voltage that is “low” near zero.

2024年1月24日 · The P0204: Injector Circuit/Open – Cylinder 4 code signifies an issue in the fuel injector circuit for cylinder 4. It can result from a malfunctioning fuel injector, wiring problems, poor connections, or even an ECM driver problem.

2017年8月26日 · The code P0204 stands for Injector 4 – Circuit Malfunction. This means that the PCM had detected a malfunction in the fourth injector circuit. In other words, the PCM commanded the injector on/off but did not see the subsequent change in electrical current.

P0204 tells technicians a malfunction was found for cylinder 4 injector circuit. This code is similar to P0200 - P0203, and P0205 - P02012. Lean and rich condition codes along with misfire codes may be found with P0204 as well.

A P0204 code is a generic diagnostic trouble code that occurs when the PCM/ECM detects a signal voltage input indicating poor performance on a fuel injector on Cylinder 4. The solenoid-operated valve on each fuel injector allows pressurized fuel to flow out of the part.