Honda 12+1 trigger
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Honda 12+1 trigger
Hello!
A friend is working on a swap project for a Honda R18a engine into a 1995 Honda Civic. We want to manage the engine thru a Megasquirt 2, but we are not 100% sure about the crank trigger decoder.
It's a 12+1 trigger wheel
There is any way to decode it using MS2/Extra firmware?
Thanks!
A friend is working on a swap project for a Honda R18a engine into a 1995 Honda Civic. We want to manage the engine thru a Megasquirt 2, but we are not 100% sure about the crank trigger decoder.
It's a 12+1 trigger wheel
There is any way to decode it using MS2/Extra firmware?
Thanks!
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Re: Honda 12+1 trigger
Did you ever figure this wheel out trying to do the same thing
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Re: Honda 12+1 trigger
Did you ever figure this wheel out trying to do the same thing
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Re: Honda 12+1 trigger
I made a custom 24-1 wheel.
Re: Honda 12+1 trigger
Another option is to cut away the +1 tooth, plus 1-3 others - Honda loves its 12-3 on bikes.
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Re: Honda 12+1 trigger
I'm pretty sure that a couple of variants of that are supported on MS3.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
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Re: Honda 12+1 trigger
Hey James, it is actually but I’m using a ms2 boxjsmcortina wrote:I'm pretty sure that a couple of variants of that are supported on MS3.
James
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Re: Honda 12+1 trigger
Same here ms2 v3 this is for my sons k24a4 motor wasted spark I have the motor running now with a 36-1 wheel but the wheel I welded to the damper has a jump to it so I really can't get the crank sensor close enough for a good read so I have to figure what tooth to cut off on the wheel do I just skip 9 tooth like a 36-1 setup ?
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Re: Honda 12+1 trigger
Skip the one to get ~90 deg angle (tooth 2 or 3, and also the extra +1 tooth)
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Re: Honda 12+1 trigger
I know I'm asking for to much but could it be possible you could make a drawing of what tooth I need to cut off thanks much.
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Re: Honda 12+1 trigger
With "Toothed Wheel" the 90 deg angle isn't crucial as you will confirm and adjust it with a strobe, however it is a good aim-for figure.
As an example, see how the wheel would be phased for EDIS4 (which requires a 90deg angle.)
http://www.msextra.com/doc/pdf/html/MS2 ... 4-117.html
James
As an example, see how the wheel would be phased for EDIS4 (which requires a 90deg angle.)
http://www.msextra.com/doc/pdf/html/MS2 ... 4-117.html
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
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Re: Honda 12+1 trigger
christiondavid wrote:I know I'm asking for to much but could it be possible you could make a drawing of what tooth I need to cut off thanks much.
Green = aprox. Sensor location
Red = tooth to be cut.
(Set your engine at cyl #1 TDC)
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Re: Honda 12+1 trigger
That's awsome thanks for the picture that will help out big time
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Re: Honda 12+1 trigger
One more question because it is a 3 wire crank sensor do I wire it up like a hall sensor or like a vr sensor ? I have a cherry hall sensor with a 1k resistor On the car now should I wire up the crank sensor like the hall sensor or remove the 1k resistor? Thank for your help.
Re: Honda 12+1 trigger
The need for a pull up resistor depends on the sensor construction and is only appllies to hall (maybe optical) sensors. The pull up is to create a square wave signal, usually 5v.
A VR sensor has a different type of output, its output is a sine wave, and the voltage can vary widely.
this is my brain on MS
A VR sensor has a different type of output, its output is a sine wave, and the voltage can vary widely.
this is my brain on MS
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
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Re: Honda 12+1 trigger
ok so treat it as a vr sensor and remove the resistor, the crank sensor has 3 wires power I know and sensor return, for ground where do I connect that wire to ? thanks.
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Re: Honda 12+1 trigger
No.christiondavid wrote:ok so treat it as a vr sensor and remove the resistor, the crank sensor has 3 wires power I know and sensor return, for ground where do I connect that wire to ? thanks.
This is a hall sensor. Wire it as it is
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Re: Honda 12+1 trigger
No I did not say to remove the resistor.
Section 5.2.3 of The Fine Manual (TFM) covers this and should answer your questions.
Section 5.2.3 of The Fine Manual (TFM) covers this and should answer your questions.
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.