boost gauge problems

[buzzardtalon]

ok i know it says to research but i havent come across any that match my problem ssooo here we go........i have tryed to hook up my sunpro boost gauge and it does nothing..ive hooked it up to the wastegate lines and the furl preassure regulator hose and a line on the intake and nothing at all no matter what the one time i got anything on the gauge it was on the wastegate hose and it would spike up to like 9-10 psi for a split second but nothing pther then that....whats am i over looking guys???

 

[Tyeler18]

Post a pic of how you have it hooked up.

 

[buzzardtalon]

i have it hooked up just like everyone shows in the tech sections.....im so stumped i know the gauge works ,i tested it with my air compressor ....i feel like a tard but idk i dont understand how i would get a boost reading off of a vaccum line....

 

[4Lurker4]

Is it new or used? Could just be that the gauge is faulty, did you test it with a pump or compressor (if it's used)? This is how it should be hooked up:

http://www.dsmtuners.com/forums/art...099-boost-gauge-install-where-tap-source.html

nevermind, you ninja'd me

Do you have a kink in the line?

 

[buzzardtalon]

sorry man yes i tested the gauge , no kinks in the lines ...so i dont know i can't be this dumb haha

 

[NismoDSM]

Might be brass fitting on back of gauge or you could have a crack in the plastic.line

 

[buzzardtalon]

Might be brass fitting on back of gauge or you could have a crack in the plastic.line

tested that also i changed the fitting and tryed a diffrent hose...im pretty good at trouble shooting but this is like a slap in the face haha i knows its just staring at me laughing

 

[4Lurker4]

It's hard to help without actually seeing it. Any dsm guys around you that could take a quick look? A second pair of eyes is always good for these situations, sometimes (as I'm sure this is) it's a simple thing you're overlooking.

 

[buzzardtalon]

It's hard to help without actually seeing it. Any dsm guys around you that could take a quick look? A second pair of eyes is always good for these situations, sometimes (as I'm sure this is) it's a simple thing you're overlooking.

thats very true man and i will have no clue if there is any other dsm guys near me but i know a few guys that build high power 240s maybe they can help

 

[bryanwheat]

If it is hooked up properly, with a good piece of line to the fpr hose and isn't giving a reading than it is either the gauge is bad, or the nipple on the manifold that supplies it is plugged. These are the only 2 options.

 

[buzzardtalon]

If it is hooked up properly, with a good piece of line to the fpr hose and isn't giving a reading than it is either the gauge is bad, or the nipple on the manifold that supplies it is plugged. These are the only 2 options.

how can the gauge be bad ...i tested it from 5-30psi with my compressor and it worked fine....ad the nipple cant be plugged..when i unhook the gauge from the line it sucks air hard so it isnt clogged ...i mean i dont now what to say other then that trust me if it was any of those things i would more then gladly addmit to it and have a working gauge but so far nothing works

 

[bryanwheat]

how can the gauge be bad ...i tested it from 5-30psi with my compressor and it worked fine....ad the nipple cant be plugged..when i unhook the gauge from the line it sucks air hard so it isnt clogged ...i mean i dont now what to say other then that trust me if it was any of those things i would more then gladly addmit to it and have a working gauge but so far nothing works

Well it is very simple. There is just a t fitting, a hose and a gauge. IF there is a vacuum/boost source at the fpr nipple, and the hose or t isn't clogged than you will be getting vacuum/boost source at the other end of the hose. The only other possibility is the gauge. There is no other magic force at work here. Either a clog in the nipple, or a bad gauge.

 

[buzzardtalon]

Well it is very simple. There is just a t fitting, a hose and a gauge. IF there is a vacuum/boost source at the fpr nipple, and the hose or t isn't clogged than you will be getting vacuum/boost source at the other end of the hose. The only other possibility is the gauge. There is no other magic force at work here. Either a clog in the nipple, or a bad gauge.

i understand this but is it posable for the gauge to be bad if it work when tested multiple times?? i can go out right now and hit it with the air hose nd it will work just fine the boost source is also good .......i think your missing the issue .....aallll of these things check out....but i still dont get a boost reading off of my gauge when hooked up

 

[Mark4g63t]

How are you testing it? Just a air gun with a hose attached to one end the other end to the gauge?

 

[bryanwheat]

i understand this but is it posable for the gauge to be bad if it work when tested multiple times?? i can go out right now and hit it with the air hose nd it will work just fine the boost source is also good .......i think your missing the issue .....aallll of these things check out....but i still dont get a boost reading off of my gauge when hooked up

It is a very simple setup, t fitting, line, gauge. There is nothing else to effect this.

 

[buzzardtalon]

How are you testing it? Just a air gun with a hose attached to one end the other end to the gauge?

correct ,ive also tested air flow in all the hoses and the t fitting and all check out ive even tested the gauge with the t fitting attached

 

[2gjlc]

BLT!!!!! Have you done a boost leak test?

 

[91-GS]

Take the gauge off and hook up a hose from air compressor to that fitting. Set it up where it's blowing air "backwards" at 20 psi or so (not too much, not too little). Now get under the hood and listen for any air leaks. If you don't hear any then something is plugged up somewhere or the line is kinked. If you hear some other than where it's hooked into the system, you found a problem.

Do not think back-flowing would hurt anything, but please wait for someone else to confirm/deny this idea before trying so you won't take a chance on damaging anything.

 

[buzzardtalon]

BLT!!!!! Have you done a boost leak test?

yezzir i have and no leaks other then one nipple on my ic pipe and i plugged that right up

 

[2gjlc]

Dam, it can never be that easy. Does the car spool and feel like its boosting? Can you hear to BOV venting? I have to side with Bwheat and say something's clogged or the gauge is bad. Sorry I'm out if ideas because its just so simple. I hate these kind of problems. I'm sure you'll find it's something staring you right in the face.

 

[buzzardtalon]

Dam, it can never be that easy. Does the car spool and feel like its boosting? Can you hear to BOV venting? I have to side with Bwheat and say something's clogged or the gauge is bad. Sorry I'm out if ideas because its just so simple. I hate these kind of problems. I'm sure you'll find it's something staring you right in the face.

well i finaly got my gauge working haha i ended up drilling a hole and welding in a nipple right on the intercooler pipe under the hood and ran my boost line right off of that and now i have a working boost gauge.....but i still have no clue why it didnt work the other way....owell haha...just to make sure , will i get a true reading from the way i ran my gauge?? and does it matter what size hose i used?? it was normal vaccume hose like whats on the fpr so i assume it is ok

 

[bryanwheat]

well i finaly got my gauge working haha i ended up drilling a hole and welding in a nipple right on the intercooler pipe under the hood and ran my boost line right off of that and now i have a working boost gauge.....but i still have no clue why it didnt work the other way....owell haha...just to make sure , will i get a true reading from the way i ran my gauge?? and does it matter what size hose i used?? it was normal vaccume hose like whats on the fpr so i assume it is ok

You need to verify that the fpr nipple isn't clogged. If you get no boost pressure from there with a working gauge than the hose or nipple is clogged. IF this is the case than your car is going to run lean under a load, and rich at idle.