token
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Posts posted by token
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On 10/4/2018 at 11:57 PM, Adamw said:
You have pin 54 correct in the xlsx I attached, this is the main power supply to the ECU from the main relay. You need to ground Pin 27 to make the main relay energise it. On our plug-in ECU we have an extra circuit (mosfet) to do this, you can use a relay controlled by pin 56 like below to ground pin 27 when ignition switch is turned on.
Can a 2n2222a transistor be used for the relay? Base to Pin 56, emitter to ground, and collector to pin 27?
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5 hours ago, Adamw said:
I have made some changes. I highlighted all my changes in red.
Note only aux 1 & aux 2 are capable of driving a 3 wire idle valve but with this engine aux 1 & 2 are needed for the vanos. The workaround for this is an external circuit to make the idle valve work more like a two wire version which can then be connected to any of the spare auxes. I will attach a diagram for that below.
Note the G4 doesnt work with CAN bus lambda controllers, only analog.
So I would be making a jumper wire from Pin 54 on the ECU connector to Pin 27 or do I leave them alone as I also use the M50 PnP pinout as reference with no mention for those equivalent pins. Pin 54 is the +14V activated by the ignition switch for both.
Can I auto tune on narrow band sensors or I need a wideband and controller to use it?
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Hi I was wondering if anyone can help me out and see if my wiring pin out is correct. I have attached my wiring chart I made to make my own PnP to the factory engine harness along with the factory ECU pinout and their functions. I have a red box G4 Extreme with CAN port.
I have a BMW M3 with S50B32 but I will be adding an ethanol content sensor for now as I would like to tune the car to run E85 on 600CC injectors while I put together parts for a turbo build as I will be adding a boost controller and probably an anti lag switch.
Am I fine running the factory dual narrow band sensors or should I get an Innovate LC-2 and place it on the 3-6 cylinder bank exhaust manifold or would I want to run dual lambda controllers over CAN?
BMW M3 S50B32 Wiring G4 Extreme
in Link G4
Posted
I have found this as a reference for a M50 wiring guide to make a Megasquirt 3 PnP which seems to work. Or I can order the same Mosfet used in the plugin so I can put all the electronics components I need into one order and solder everything to the header.