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Problems for specific Lexus IS300 years:

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Most reported 2005 Lexus IS300 problems

 

Verified for the Lexus IS300

The Check Engine Light may illuminate because the mass air flow sensor sends incorrect information to the engine control computer. This can cause a loss of power on acceleration. A failed mass air flow sensor will require replacement.

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Verified for the Lexus IS300

Occasionally, the Check Engine Light is illuminated due to failures in the evaporative emission (EVAP) system. Our technicians tell us that proper diagnoses is generally required to confirm the exact fault causing the warning light to come on.

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