Ok guys after a lot of procrastination I installed my defi boost gauge and link on my evo MR. I tapped the pre existing vacuum line from the factory boost gauge. Problem is when my car is at idle it only reads about 15cm/hg vacume instead of like 40 before I installed the defi boost gauge. However when I go into boost both gauges read accurate 1.35 Bar in 6th gear.

Please help me, I do not think the line is kinked because it reads boost fine just not vacuum.

 

Update, both gauges are reading boost accurate, about 19-20 psi in 6th gear.

However my mitsubishi boost gauge is not going into vacuum at all, and after say going to 15 psi the needle slowly drops to about 5 pounds and stays there when the Defi boost gauge is in 25 psi vacuum.

Thanks

 

The Mitsu gauges are kinda crappy man and i wouldn't worry about it "not reading 40", the standard for vacuum is about 15 depending on your altitude, so don't worry. The only question i have is why are you using your pre-exisiting tap.....there are plenty of "How To's" that show different methods to where to tap in at.

 

Yea why do you need two boost guages???

 

Ok now the Mitsu boost gauge is not going below .5 bar, guess I will be looking for another vacuum source. What is the cleanest place to get a vacuum source, only one I know off hand is FPR.

Thanks guys

 

Dude, look in the "How To" section. I know there is one there, and i bet it has pictures too.


EDIT: Alright dude i am back, and here is the link for exactly what you are asking for, and like i promised......it has pictures. You gotta learn to search man......or your gonna need a fire retardant suit.

https://www.evolutionm.net/forums/sh...+gauge+install

 

Read this.

http://evomoto.com/tech_info.php?tPa...8749bf49d175d4