What Does P0303 Mean? The P0303 DTC is set when the ECU detects multiple misfires from cylinder 3. Misfires cause the ECU to set the Check Engine Light and put the vehicle into a failsafe mode to prevent damage. The Check Engine Light will remain until the code is repaired. engine code P0303P0303 fixobd P0303dtc P0303obd code P0303obd2 P0303P0303 car codediagnostic code P0303car code P0303check engine code P0303fehlercode P0303P0303 fiatcodigo P0303codigo falla P0303P0303 kody b??dówcodigo de falla P0303 What are the common causes of P0303 ? Faulty IMRC actuator relay (if equipped) A large air leak at or near the number one oxygen sensor would also cause a lean mixture. Faulty IMRC actuator/sensor How do you troubleshoot P0303 ? While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0303 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools. Searches related to P0303 - Cylinder 3 Misfire Detected p0303 code bmw cylinder 3 misfire cost p0303 ford f150 p0303 dodge p0303 honda p0303 vw p0303 code subaru p0303 nissan
