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Jumper JS10 to IGN to bring the signal out on pin 36.
#Megatune com install
To do this, install the MAP sensor, but bend pin 1 so that it does not go into the hole (the hole will be jumpered to SPR3).
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Alternatively, you can use the Megasquirt’s MAP sensor for real time barometric correction.To do this, omit the MAP sensor and wire pin 1 of the MAP sensor header to the SPR3 pin. Step 53: The adapter board gives you the option of using the GM MAP sensor instead of the one built into the Megasquirt.That would be XG1 to XG2, OPTOIN to TACHSELECT, and TSEL to OPTOOUT. Step 52: Set the jumpers for Hall/Optical/Points.Step 51: You don’t need these components, but I’d recommend installing them anyways.If you see any steps that say ‘only do this if you are triggering from the negative terminal of the coil’, you aren’t, so don’t. Step 50: You’ll be installing the ‘Hall/Optical Input Circuit’ (currently all steps under 50a).Step 22: You will want all of the IAC jumpers.I’ll just be covering any departures from that doc here. For the most part, stick with the standard assembly documentation in the MSExtra MS2 Manual.Install the connector removed from the donor ECU.īuilding and Configuring the MS-II If you’re assembling your MegaSquirt-II from a kit (Part# MS230-K):.This one goes straight up and will bolt to case rail. Install Q2, the 2N3904 transistor, if you are using this with an automatic transmission.Install R5 (560 ohm resistor), and R6 (10K resistor).
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Install R3 (10K resistor) and R4 (1K resistor) if you are using this with an automatic transmission.If you have an IAT sensor installed, omit R2. Install R2, the 47K resistor, if you are installing this on an engine that lacks an IAT sensor.Install R1 (1.0K resistor) and D1 (4.7 volt zener diode), taking care to install D1 with the banded end pointed towards the band on the PCB.Disassemble the donor ECM and remove its harness connector using a “solder sucker” or solder wick.This board is meant to be used with Megasquirt-II only. It also works with many Camaros and Caprices with the TBI engine.
#Megatune com full size
Some examples include full size trucks from 1988 to 1992 with the 4.3 V6, 5.0 or 5.7 smallblock, or the 7.4 big block. GM TBI adapter board (currently available in bare PCB form) allows you to install MegaSquirt into GM trucks with the ECM part number 1227747 and cars with ECM part number 122746.