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Old 03-27-2007, 04:15 PM
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map fooler question

alright i beleive my boost gauge is only reading up to 17psi but my truck is making more cuz it will make it there without coming close to flooring it and it will get there on all hp setting's how do i get around this or where do i start to look for any kind of answer..... i saw something on here awhile go about the same thing i cant find it though any help is appreciated
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Old 03-27-2007, 04:46 PM
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Throwing out an idea;

Could it be a leak somewhere? Where is the gauge getting it's reading from? I assume you're supposed to get the SES light for a few mins after the motor defuels

With the WW and the housing, plus the highest HP setting on the chip I'd assume you would definently see over 20.
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Old 03-27-2007, 06:01 PM
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ya i no i should be i mean unless the turbine on the exsaust side of the turbo is messed up or maybe it is clogged or something.... but i have the map fooler so my ses light doesnt come on but somewhere i heard (beleive it was here) that your gauge will only reader as much as your map sensor will allow it and i beleive it on reads up to like 20 or somthing close to that
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Old 03-27-2007, 06:42 PM
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where is your guage hooked up? if your guage is be in front of the map sensor, it will read the actual pressure. what kind of fooler do you have? have you unhooked you wastegate? there is a BIG difference in mine if it is unhooked.
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Old 03-27-2007, 09:38 PM
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not sure what kind is is just bought it under the table at a performance shop and thats it...... it works though
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Old 03-27-2007, 10:30 PM
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Is it electrical or mechanical fooler??
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Old 03-27-2007, 11:12 PM
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mechnical fooler
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Old 03-28-2007, 05:30 AM
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Waist Gate

When You Say Unhook The Waist Gate Do You Mean Take The Rod Off
Or Plug The Vacuum Line. ? And Will It Over Bosst Or Cause Damage If The Rod Is Unhooked ?
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Old 03-28-2007, 06:12 AM
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do yerself a favor and check yer whole air system for leaks,,,,,,,,,,I built a tester to clamp to the charger inlet then used some shop air to check for leaks.............I have done prolly 30 trucks now and everyone on them had boost leaks including my own.

Cheers,Kevin
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Old 03-28-2007, 06:43 AM
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I'm thinking it's your boost fooler, it is only letting the map see so much boost, and thats what the gauge is showing.

Gord.
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