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MS1-Extra

General Settings
with LED 17(D14) and VB921 Spark

Only for use with the MS1 Extra code (MS1 - 68H908 based microprocessors)

By Philip Ringwood (daxtojeiro), James Murrey (jsmcortina) and Ken Calver (muythaibxr)


Please Note:

All of these instructions / diagrams are to be used at your own risk, like most things there is more than one way to do the same thing, what we have tried to do is to offer a method that we have tested or that others have tested for us. No warranty expressed or implied.

Use at your own risk.


If using a distributor based setup and Spark then set Distributor to MSnS. The coil signal is at LED 17(D14) (set to Spark output A). When the coil is driven by a VB921 with its signal directly from the ECU then the Spark Output inverted entry must be set to Yes.