Technical Megasquirt

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Technical Megasquirt

3.2.1 Glender V2.2b modded firmware is out. Idle rpm vs advance (i got 850 +/-30rpm idle and AFR stuck like glue at 14.7) plus signal smoothing instead of lag factors. You won't believe how much more torque you get on the top end because of smoothing instead of lagging...
 
Hi,
I know it does not belong here. but I need advice with MS on my Punto GT. there is someone who has it? I have a problem with the involvement of external wiring.

Thank you

Kubito
 
Idle regulator is a PWM valve, so it's a straight connection to Fidle pin and cam phase sensor is a second VR sensor and you might need to assemble a second circuit in proto area. You can always start the car without phase sensor, it will just work at semi-sequential mode, just like any old FIRE engine without cam signal.
 
Hi Asteris

thank you for the advice. Motronic but has 2 wires for PWM. but MS has only 1 pin for it? and how it should create a second cam phase circuit?
 
my megasquirt must have: a jumper from VRIN to TACHSELECT, jumper from TSEL to VROUT , also I used TIP120 for PWM. and need two BIP for igniting the two coils. I also have a jumper from JS10 to IGBTIN . for PWM I had to use 1N4001 diode and resistor 330ohm. for second BIP i must use two 330ohm resistors? Is this correct? could someone check?

I have a VR sensor on the crankshaft.
sensor on the cam. (I do not know how to get involved?)
PWM
and setting the teeth 60-2

It's all good?

Thank you

Kubito
 
Hi intelligent ones,

Quick question, can you get the megasquirt to run and switch between two set of injectors?
Eg, running 4 injectors in the tb's then at say 6000rpm switch to a set of injectors infront of the butterflies?

Cheers Tom
 
Why, because at high rpm the fuel has more time to mix went fired before the butterflies, it's only a tiny gain in power tho.
Why 2, what to loose, it'll be fun to make and cost a few fittings, bit of hose, a set of injectors. A few hours milling, welding and fabricating ect
 
Hi Folks!
I'm looking to fit a microsquirt to my '02 8V 1.2 FIRE Punto.
Anyone got a schematic / wiring diagram for the OEM engine control system?
ECU is Marelli IAW 59F.M3 with the twin 38 pin connector pockets, mounted on the back of the throttle body.
Thanks.
Mike
 
Hi guys,

I'm not using a Ms, but an EMS4860 ecu

still, I hope you can help me with the following info that I need and can't find anywhere

Can someone help me?

I really like to know:


1)Trigger edge: falling or rising? (crank sensor = hall)

2)Sync edge: falling or rising? (cam sensor = hall)

3)does anyone know the "static timing tooth"?
From the EMS manual:
Static Timing tooth:
[FONT=KOCNJG+Arial,Arial][FONT=KOCNJG+Arial,Arial]In older software versions this was called "No. of teeth after missing"
This parameter works in conjunction with Missing Tooth and Multi Tooth Modes. The ECU needs to know which tooth is the static (index) tooth. This is the tooth that is aligned with the sensor when the crank is somewhere between 15 deg BTDC and TDC. EG: If the static tooth is 5 teeth after the missing tooth/teeth or after the sync signal then set this parameter to 5.

[/FONT]
[/FONT]4)Ignition firing edge: falling or rising?
I want to go full sequential ignition, so 4 seperate coils, how can I know if it's falling or rising?
from the EMS manual:
Ignition fire edge:[FONT=KOCNJG+Arial,Arial][FONT=KOCNJG+Arial,Arial]
This parameter must be set according to the igniter module you are using. EMS igniters and most OEM igniters work with a falling firing edge. This means that the ignition output of the ECU is held at a high voltage for the duration of the dwell period and then switched off when the coil needs to fire. Rising edge modules work in the opposite manner. It is important to set this correctly to prevent coils and igniters from being overloaded.
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thanks
 
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