limit for the amount of sensors on 5 Vref ?
Moderators: jsmcortina, muythaibxr
limit for the amount of sensors on 5 Vref ?
Is there a limit to the amount of 5Vref sensors that can be connected to the ecu ? I already have a fair amount of them connected and since I'm making some corrections to my intake manifold I was considering adding 8 maps (one for each cyl). I intend to use the maps to properly balance each cylinders air flow. (ITB's btw)
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Re: limit for the amount of sensors on 5 Vref ?
You need to keep the current below the maximum of the regulator, but also remembering the power it will need to dissipate at that current.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
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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".
Re: limit for the amount of sensors on 5 Vref ?
Thanks James, but I might have missed what the current rating is. Do you know ?
Re: limit for the amount of sensors on 5 Vref ?
The part is shown as a LM2937ET-5.0 on the V3.0 hardware schematic, if this matches what you've got it is upto 500mA.
Please note this is a total amount for the whole ECU, not just what is available to external devices on 5v Vref.
Please note this is a total amount for the whole ECU, not just what is available to external devices on 5v Vref.