Ma voiture est une Avalon modèle 2000 moteur V6 1MZ-FE
Hi there,
P0300 indicates a misfire on random cylinders, whereas P0301 indicates a misfire on cylinder 1. I would suggest looking at cylinder 1 first, but check the others also. Here is a list of possible causes.
P0301 TOYOTA - Cylinder 1 Misfire Detected Read more: https://www.autocodes.com/p0301_toyota.html
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