Is there any way to tap into the map sensor with a volt meter or something and use it as a boost gauge?

 

I suppose it's possible but you will need something to convert the digital signal into something useful (psi). If there are elctrical PSI gages, I would bet they are analog the MAP is digital, it's a variable capacitance sensor supplied with a 5-volt reference signal from the (PCM) and produces a digital frequency signal.

 

this is how banks provides the boost signal to the 6 gun tuner, it shows 1 psi lower than the auto enginuity live data feed though

 

Well you convet to psi yourself. Like for every Hz or whateverer = 3 psi. you see what I mean? I talking poor man stuff a way to test without buying expensive gauges and having to setting them up.

 

Scat, if you can get a guage to read volts, I will pull up my Auto Enginuity and tell you what voltage applies to what boost pressure, the live scan give that info.

 

Why not just spend 30 bucks and get the gauge???

 

Got the volt meter. It would be great if you could get me that info. Thanks

 

i have the "poor mans gauge" you can tee into the map lne and get a diagnostic pressure gauge from any autoparts store dirt cheap,

but based on your signature you dont need a boost gauge and i'd save up the cash to buy one

 

Why wouldnt I need a boost gauge? What kind of boost should I get with my set up? I did get a 30 dollar gauge and it never reads more than 1 LB. Either the gauge is wrong or I have leaks I cant find. Thats why I am looking into things.

 

sorry, i didnt see the edge chip, but either way unless you have a miracle motor you wont be in any danger of overboosting. and since you do have an edge chip i would definatly say you need to spend the money on a pyrometer before anything else.

if you only get 1 psi but the truck runs good then you have a gauge issue. you shoudl be between 15 and 20psi under full load over 2800 rpm. normal cruise 0-1 psi is normal.