Sensor grounds at the Relay Board

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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vwsuperbug
MegaSquirt Newbie
Posts: 9
Joined: Wed Feb 09, 2011 6:17 pm

Sensor grounds at the Relay Board

Post by vwsuperbug »

Just a question:

Is it best to add a ground from the engine block to one of the three sensor ground inputs on the relay board, to reduce noise in those wires (tps, coolant, air) ?

These three sensors all run to pin 19 on the DB37.

Thanks i would love to know the answer..

Chris
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Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Sensor grounds at the Relay Board

Post by Matt Cramer »

Such a ground would be more likely to increase noise by creating a ground loop.
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