MAP Sensor Boost Gauge?
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
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.
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Posting Guru
Joined: Nov 2007
Posts: 2,014
Likes: 1
From: Long Island, NY
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.
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Posting Guru
Joined: Nov 2007
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From: Long Island, NY
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Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
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
but based on your signature you dont need a boost gauge and i'd save up the cash to buy one
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Posting Guru
Joined: Nov 2007
Posts: 2,014
Likes: 1
From: Long Island, NY
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.
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
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.
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.
