Hesitation on Acceleration

This service bulletin addresses a hesitation on acceleration issue in certain Lexus models, including the LS460 and LS600h.

The issue may be accompanied by a Diagnostic Trouble Code (DTC) P2119 and can be resolved by recalibrating the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) and possibly replacing the cylinder heads.

The bulletin applies to vehicles produced before specific production change effective VINs and provides warranty information, parts information, and a repair procedure to address the condition.

A detailed diagnostic procedure is also outlined, including checking the Knock Correct Learn Value and Ignition Advance, as well as inspecting the spark plugs and valve guides.

Manual:

Download: ODxus Technical Service Information Bulletin – Hesitation on Acceleration (LS460, 2007-2012)

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