when you install a 3 bar map sensor, is it safe to tap into another vaccume line to get the pressure or do you need to tap the intake manifold and run a seperate line to the sensor???

 

It fine to tap it pretty much anywhere on the Intake Manifold. Try to spread out your Vacumm sources tho.

 

ok thanx

next question is.. with the 3 bar map how do i know what wire goes to which pin?

the map sensor says "C" "B" "A" on it near each pin

the wires going to my stock map sensor are red/green, green/white, and yellow/red

 

go here.... http://www.hondata.com/3barinstall.html

Next time here... https://honda-tech.com/zerosearch

 

thats for obd1 cars

mine is obd2

for obd1 ground =green/white
map signal = white
5 volt = yellow/red


obd2 ground = green/white ??
map signal = red/green ??
5 volt = yellow/red ??

is that correct??

BTW i did a search and found nothing that answered my question!!

 

consult your helms manual...
http://www.helminc.com

 

for obd1 ground =green/white
map signal = white
5 volt = yellow/red
^ those are the colors that are on my 3bar map sensor

red
green yellow
2 black yellow
green

what goes were guys?

 

Several companies make them, but this is the best way to provide vacuum for your map sensor:

https://honda-tech.com/zerothread/2258115

 

thanks for the info!