my S40 im just adding my air temp sensor , the manual says to use pin 29 for sensor ground, can i use any of other pins like 28.13,14.
i dont really want to splice into a wire thats already on that pin when i have a spare earth slot on connector to go straight to.
sensor grounds can i use any of the ground ecu pins?
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Re: sensor grounds can i use any of the ground ecu pins?
13 and 14 are clearly marked power ground, so no.
28 and 29 are clearly marked as sensor ground, so take your pick.
28 and 29 are clearly marked as sensor ground, so take your pick.
- mefmotorsport
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Re: sensor grounds can i use any of the ground ecu pins?
On the S40 only you can also use undesignated pins 2, 4, 5, & 7 as sensor grounds as they are all joined to pins 28 &29 on the PCB.
Re: sensor grounds can i use any of the ground ecu pins?
Would that apply to all of the 'S' series boards or are they all entirely different / individual?mefmotorsport wrote:On the S40 only you can also use undesignated pins 2, 4, 5, & 7 as sensor grounds as they are all joined to pins 28 &29 on the PCB.
Star wiring multiple sensor earths to one/two pins always seems a 'messy' solution.
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Re: sensor grounds can i use any of the ground ecu pins?
katana wrote:Would that apply to all of the 'S' series boards or are they all entirely different / individual?mefmotorsport wrote:On the S40 only you can also use undesignated pins 2, 4, 5, & 7 as sensor grounds as they are all joined to pins 28 &29 on the PCB.
Star wiring multiple sensor earths to one/two pins always seems a 'messy' solution.
In some ways.....but electrically, in terms of interference etc....it's probably a very clean solution.
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Re: sensor grounds can i use any of the ground ecu pins?
No, S40 only.katana wrote:Would that apply to all of the 'S' series boards or are they all entirely different / individual?mefmotorsport wrote:On the S40 only you can also use undesignated pins 2, 4, 5, & 7 as sensor grounds as they are all joined to pins 28 &29 on the PCB.
Star wiring multiple sensor earths to one/two pins always seems a 'messy' solution.
The only other option is to supply a dedicated sensor ground input for each sensor, and that's not practical