GM LS2 and family 58X reluctor engines.

UNTESTED!
The MS3+MS3X can easily interface with stock LS2 crank and cam sensors, high impedance injectors and standard logic coils.

Crank and cam sensor inputs
These sensors need +12V, ground and supply a 'clean' logic signal for the Megasquirt. The Megasquirt will need setting internally for the 'VR' circuit and set to accept a LS1 input without a pullup.
See Tach Input and following sections.

Ignition outputs and LS1/2 coil wiring are described here

Injector wiring is described here

Settings

On 'Engine and Sequential settings' set Main Fuel outputs to MS3X fuel and enable fully sequential.

On 'Ignition Options and Wheeldecoder' set Spark mode to 'Toothed wheel', input capture to 'Rising Edge', Spark output to 'Going high (inverted)', coils to 'Coil on Plug', spark hardware to 'MS3X spark', Cam input to 'MS3X Cam in', Trigger Wheel arrangement to 'Dual wheel with missing tooth', Trigger wheel teeth to 60, Missing teeth to 2, Tooth #1 angle to 15.0 (unconfirmed), Main wheel speed to 'crank wheel', Second trigger active on 'Poll Level'

If you have a question, comment, or suggestion for this FAQ please post it on the forum.

No part of this manual may be reproduced or changed without written permission from James Murray, Ken Culver and Philip Ringwood.