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TSB Document:

Affected Component: EQUIPMENT:ELECTRICAL

Summary
TSB: Some 2012 - 2014 model year Tacoma vehicles equipped with 1GR-FE engines may exhibit spark knock (detonation) during light acceleration and/or uphill in hot weather (80°F or higher). The Engine Control module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring.

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Date Published
OCT 14, 2014
NHTSA TSB #
10109402
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