this morning i got into my car and noticed there is something wrong with my defi d boost gauge... anyone got any ideas? the reading is way off...

heres what i mean... with the engine off...



anyone know how i can fix this? i had this gauge for about 4 months

 

Where did you install the T-fitting for the gauge? I remember way back when that if you tapped in the downstream side of the FPR that it could cause the gauge to stick when the car was shut off.

 

I've had this gauge for almost a year and have never had that problem. ^ and like he said, where is t-eed off at.

 

Gauge may be out of calibration.

 

mine is the same thing ecept at 2psi

this is weremine is....

 

take the guage apart and crimp the metal bladder, keep crimping different parts of it to get it back to zero.

 

Try tapping it here (red circled)....this is where I have my Defi tapped and where it was recommended by countless others.

 

thats where i had it..i runs perfect for 4 months then it started to be 2 psi off then this...

 

+1 see if that works

 

thats where my oem mr gauges are tapped from the factory...

ive seen defi d's come out of the box like that...open it up and try to zero it out like others have said?

 

Defi-D are junk IMO. The first one I bought a year ago came defective, then when I got another one I had it for a little over a year to find out it reads innaccurately over 20psi.

I bought a Stewart Warner for half the price and havent looked back. Spot on accuracy and it LOOKS better. What more could you ask for?

https://www.evolutionm.net/forums/sh...d.php?t=184856

 

i agree, i think the defi-d gauge was wayyyy over hyped. i fell for it. if i have to get a cheap gauge i might as well buy autometer or sw. which i will next time. right now i have my d-guage adjsuted so it reads dead on, but the fact is i had to adjsut it.

 

how do you adjust it? does it twist open? wouldn't this be covered under warranty?

 

oh, yeah they definitely suck. I am on my third boost gauge from them, and I have only had my car for a year.

Check out my thread, it also has a link on how to fix it, but if I was you I would just toss it in the trash and buy something else

https://www.evolutionm.net/forums/sh...0&page=1&pp=15

 

the Defi D-gauge sucks, i had the same problem. that's why i got the DEfi Link BF series. Also the best place to tap for boost is the Vcaum line that goes from the throttle body to the BOV.