MGB/Megasquirt
MS 1, version 3.0, firmware MS/Extra 029y4
Jumpers:
Connect R26 input (Squirt 1) to added 330 ohm resistor. Other side of new resistor to IgbtIn jmp (undo IGBTIN to Js10 step 65d)
IGBTout to Ign (DB37 pin 36)
OptoIn to TachSelect
OptoOut to Tsel (IRQ1)
XG2 to Jmp SPR4 (DB37 pin 6)
MGB Coolant Sensor Wiring Detail
Solid State Instrument Stabilizer
Stimulator (v2.0) modification for MGB coolant sensor
Ignition Wiring and jumpers Detail
MegaTune Ignition setup detail
MGB ignition map calculator (xls) (Excel spread sheet)
MGB wiring diagram for fuel only (pdf)
MGB wiring diagram for fuel and spark (pdf)
MGB wiring diagram for fuel and spark (Wide Band O2) (pdf)