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APP sensor wiring

EFI Wiring Fundamentals

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Discussion and questions related to the course Motorsport Wiring Fundamentals

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Greetings everyone!

Noob here looking for advice/knowledge. I’m installing a Syvecs standalone ecu on my Mazda 3 MPS and I have a few questions regarding the wiring of the APP sensor.

The pinout for the Accelerator Pedal Position connector from factory is as follow:

""

My understanding is Syvecs uses (2x) 5v for each sensor but when I look at the OEM wiring diagram for the sensor it gets a little confusing as it seems that the terminal F is a 12v coming from the main relay. I was told to re-pin terminal F and use a jumper from terminal A to F for a 5v reference. Below are more screenshots of the wiring diagrams.

My questions are:

How does other standalone ecus do it?

Is there a way to avoid re-pinning the connector?

Would it still work properly with just terminal A connected for a 5v?

0140-3a (Main relay)

[img="blob:https://www.hpacademy.com/a87d320e-1965-48de-a998-fce3508c3ab8" alt="" alt="" ]

0140-3i (APP sensor)

[img="blob:https://www.hpacademy.com/908492b2-79ca-4d55-b0e3-2d0e0f281fb4" alt="" alt="" ]

Thanks in advance and happy holidays!

Omar

Here are the wiring diagram again.

""