Megasquirt 2 hei distributor wiring diagram. There are a few different megasquirt wiring diagrams floating around the internet. Visual phasing of the pickup wires is different between bosch hei and msd. Tach signal is a purple wire with a white trace pin r goes to ampseal optoin pin 30 ground the ampseal optoin pin 31 at the distributor. Using megatune 225 settingsignition settings.
Manuals are available to download as pdfs or to view online page by page in your web browser. Megasquirt system hardware 21 overview the megasquirt engine control unit ecu receives signals from the various input sensors and then controls the fuel and spark outputs to run the engine. Also have a gm e coil mounted in the valley of the intake between the distributor and throttle body. Gm ignitions wiring an hei 4 pin module magnetic pickup trigger.
The 7 pin hei module. With a gm hei 7 pin and 8 pin modules the ignition module wires you need to know about are. Circuit diagram and support info. With a gm hei 7 pin and 8 pin modules the ignition module wires you need to know about are.
If you have put your megasquirt together but it does not work dont panic just follow the troubleshooting instructions. A wiring diagram to connect the msd power grid system controller to a 6al can be found in. Dizzy based ignition systems are usually the easiest to take control of and support for standard distributor based ignition systems was built into the megasquirt with msns e and megasquirt ii so there is a huge amount of support there. The 7 pin hei module.
Megasquirt should be connected with a pass through hole and grommet to the engine compartment for the wiring to the injectors sensors fuel pump etc. Dusterbd13 wrotewill do on the grouding and wiring diagrams as far as the msextra manual goes. For engines that already have fuel injection installed you will likely be able to re use many of the existing sensors and output hardware. Tach signal is a purple wire with a white trace pin r advance control signal is a white wire pin e override cranking signal is a tan wire with a black trace pin b.
Advance control signal is a white wire pin e goes to ampseal pin 12. Override cranking signal is a tan wire with a black trace. For the most part theyre all the same. Manuals for megasquirt 3 ms3 ecus 15x firmware the manuals are split into three main sections.
Setting up this manual contains a quickstart continue reading.