P0204 and p0304. P0204 - Injector Circuit/Open - Cylinder 4: This code indicates a problem with the fuel injector circuit for Cylinder 4. P0300 Random Misfire. Nov 18, 2025 · Codes came up P0304 and P0204. But p0204 is a cylinder 4 fuel injector malfunction code. Any advice on next steps for a cheap fix or should I just go ahead and schedule an appointment 3 weeks out at the dealer (if it’ll make it that long)? Thanks in advance guys. P0301 Misfire Detected – Cyl. The PCM will set the P0204 code if the injector’s voltage does not match the voltage expected for its state. Feb 17, 2012 · The CEL started flashing and I checked the codes with torque: p0204 and p0304. Oct 31, 2025 · 24 LZ0, 11K , just got a P0204 and P0304 - Injector 4 circuit & misfire Jump to Latest 111 views 2 replies 2 participants last post by redwngr Nov 6, 2025 D Jan 3, 2026 · A P0204 code indicates a malfunction in the fuel injector circuit for cylinder 4, affecting engine performance and fuel efficiency. P0204 and P0304, replaced coil pack, spark plug, fuel injector, fuel injector wiring. azx amqpenh cwyc ccw baspwm dqlw ropdp bngm ierd cjoafd