MAP sharing

[92Ty#1524]

I currently have two MAP sensors. One 2bar for the stock eng and a stand-alone 3bar for the Autometer Nexus 30/30 gauge.

I'm upgrading to 50#s and a Phil Long chip which requires a 3bar MAP.

Would it be a problem to use one 3bar MAP (which I already have) to feed a signal to both the PCM and the guages? My logic says that since they share the same ground (bat neg) then I should be able to use either's 5v ref and still get a good return signal to both.

Whatcha think?

 

[Bill Z]

Re: MAP sharing

Try it to see. Many times its not the voltage but the current. Strip the wire back in the loom so if it doesn't work and you have to tape it back, it won't be seen.

 

[92Ty#1524]

Re: MAP sharing

Try it to see. Many times its not the voltage but the current. Strip the wire back in the loom so if it doesn't work and you have to tape it back, it won't be seen.

Trial and error is what I'm trying to avoid. Is why I made the post before I try something that will yield bandaided wiring if I'm wrong.

 

[Quickstop [UK]]

Re: MAP sharing

i can't imagine the current being a problem in this case. Using the 5v common terminal should be fine.