Check Engine Light With Engine Misfire Code (P0300-P0306) on Lexus IS250

Submitted by Jim Taddei · Jul 7, 2025
Published by RepairPal

Problem overview

The Check Engine Light may illuminate after a cold start with an engine misfire code stored (P0300 - P0306). This condition can be caused by faulty valve lash adjuster and/or valve spring. Our technicians tell us that revised parts are available to correct this concern.

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