Lexus IS250 Problems

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

Problem Description and Possible Solution

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.

(17 people reported this problem)

Lexus IS250 Vehicles With This Problem

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Average mileage: 69,046 (9,558–134,000)
7 model years affected: 2006, 2007, 2008, 2010, more2011, 2013, 2014
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Viewing 1-6 of 6 comments
check engine light is on code p0300 ,,p0304,p0305,p0306,dont know what to do,,,,, car runs fine
Check engine light came on. Came up with 7 codes on it 301 302 303 305 306 & 456. Car runs like crap. Looses power when driving and very slow to start off from dead stop. Nothing like it normally runs.
recieved p0300 check engine light mulitple cyclinder misfires car was brought into dealer 4 months after 4 year warrenty was up dealer was aware of this problem hapenning set me up with loaner car my is250 was fixed with 9 year warrenty on pistions rings p0300 codes all at no--charge