Dkfung88

So i have an AEM digital boost gauge and all of a sudden its not reading boost. I'm pretty sure it is not the boost gauge or the solenoid because i put in an analog one and it is not reading boost either (it'll read a little but it is still under vacuum when i know I'm supposed to be boosting). I am thinking of the vacuum lines so i bought myself a vacuum manifold to attach all of my lines to.

So my question is, could it be anything else that is affecting my boost gauge from reading anything?

05_ScionTC

does it read vacuum??

Dkfung88

its not reading vacuum either

cavalierkid888

iTrader: (1)

Is the car idling fine?

05_ScionTC

where did you hookup the ground and power wire too?

Same thing is kinda happening to me, cause i had it switched up to my cig lighter and everytime you turn the key to the accesories-on-start position between the on and start there is a split second where the battery shuts off for a second so my boost gauge wouldnt recalibrate itself and would read boost but i dont even got the turbo on yet, so i had to turn the key to start but not turn it on yet and wait a few seconds then turn it on and then it read boost fine.

But sounds like you might not have a good ground or power? Are the sensors and plugs all plugged in tightly?

Dkfung88

hmm would idling be the problem? my car isnt fully tuned, its running on a base map for now and as long as i stay under 4 lbs its fine. But the boost gauge has been working up for like a few months up till two days ago.

i wonder if its the power and ground... but the gauge does get power, but does it really need that much electricity for it to run correctly?

hmm... actually... now that i think about it.. when i pull the gauge off, and hook it back on after a day, it reads perfectly... for about a minute. then it gives me those dashes again where it cant read unless i punch the gas and hit boost, but when i do that the gauge still only reads in vacuum

skinnayyy

the same thing happened to my oil press guage. it read great for a couple months and now... --- 100% of the time.

cavalierkid888

iTrader: (1)

So your boost gauge was working fine for a few months and now it just stopped working properly??


First off I would get a tune dude, driving around for months on just a basemap isn't such a good idea.

But I guess you should get your boost gauge working properly before you go in for a tune...


What have you done to the car recently before the gauge went out on you?

DezodDon

Where did you hook up to get a vacuum source?

Dkfung88

i was just driving it regularly before it went down...

i think they tapped everything together... so i have one vac pressure...