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post #1 of 7 Old 11-12-2007, 09:35 PM Thread Starter
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boost guage question

alright i have a brand new turbo new up pipes no leaks and my gauge will only read 18 i have a map fooler after the T in that little line that goes to the map sensor. so how do i no if my guage is messed up. i no im getting over 18 psi. any ideas

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post #2 of 7 Old 11-13-2007, 04:31 AM
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Does the truck feel under powered? You can always hook up another gauge and compare the readings?

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post #3 of 7 Old 11-13-2007, 09:50 AM Thread Starter
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not at all. if i hook up another guage will i have to redo the t fitting and the hot and ground wire

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post #4 of 7 Old 11-13-2007, 09:57 AM
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Where does your boost gauge hook into.


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post #5 of 7 Old 11-13-2007, 09:59 AM Thread Starter
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you mean the positive lead. im no t sure but im guessing my runnin lights switch.

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post #6 of 7 Old 11-13-2007, 10:41 AM
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Maybe your wastegate is opening too early. Unplug (or tighten) it and see what you get. Can you tighten the banks WG?

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post #7 of 7 Old 11-13-2007, 11:04 AM
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Quote:
Originally Posted by red73psd View Post
you mean the positive lead. im no t sure but im guessing my runnin lights switch.
Is your gauge electrical or mechanical. mechanical uses a rubber or poly hose to obtain its reading. If that line is after the boost fooler then that would be the reason why you only have a reading of 18 psi. If your line is before the map fooler then you would have a true reading. To me it sounds like your gauge is after the boost fooler.


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