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Re: Engine ECM wont communicate with Vectronics Mastertech scanr
Posted to Technical Discussion Forum on 10/9/2009 12 Replies

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This is Rick,Adam's tech -

The Haltech is not a piggyback system, rather a standalone. The coils and very large injectors are disconnected from the Lexus ECM and driven by the Haltech. The only sen... Login to read more.

12 Replies Received (View Replies)