Note! This feature is only available in 1.1 firmwares

Introduction - Hardware mods - Settings - On/Off mode - Wiring - Test mode - Setting up -

Introduction

Support for full sequential fuel and coil-on-plug ignition on V10 and V12 engines is possible. However, the stock hardware only has provision for eight channels so DIY is required to add the addition channels (or purchase pre-configured from your vendor.) For V10 you need to add spkI,J, injI,J. For V12 you need to add spkI,J,K,L and injI,J,K,L. As always the coils and injectors are wired up in firing-order order.

Hardware Modifications

Injection
For injection, a suitable PCB is available from JB Perf. The ignition FETs and resistors are not required.

Read more here

The recommended connection points for injI,J,K,L are the 'spare' pins on the MS3X card.

When using the JBperf board, connect:

Function	MS3X	JBperf board
Inj I	H3	inj 1
Inj J	H4	inj 2
Inj K	H1	inj 3
Inj L	H2	inj 4

Ignition
The recommended method to add the extra ignition channels is to replicate the circuits used on the MS3X card by installing components in the prototype area of the mainboard (or on your own additional PCB.)

Having built that circuit, either connect to your own connector, or route through the JBperf board mentioned above. The ignition FETs are not needed and should not be installed. Jumper from the output of the buffer circuit you built to the middle pin of each FET. i.e. spkI -> ign1, spkJ -> ign2 etc.

The output connection from the JBperf is

Settings

Ensure you have support for more than 8 cylinders by enabling CYL_12_16_SUPPORT in Project Properties - settings.

With the wiring advised above, be sure to select H1/2 for injI/J.

(Note that the setting name incorrectly says H1+2, when it should say H3+4. This will be corrected in a future code release.)
Spark hardware on the ignition settings page should be set to "MS3X"

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 and Ken Culver.