 Boost gauge acting up, -shaking- |
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 Feb 10, 2006 - 2:12 AM
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 Enthusiast  Joined Jan 13, '06 Currently Offline Reputation: 0 (0%)  |
when ever i start my car in the morning or a cold start the boost gauge needle shakes pretty hard :!: i can hear it and see it. at first it moves up and down like 2-3 inches of mercury (in-Hg) then as the car warms up a little it calms down and just dose it when i have throttle at like 60% and the needle is at like 5. so when I'm accelerating and try to keep my gauge at 5 it will shake very little but you can hear it and see it if you look hard.?
 normal ? vac leak ?
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Feb 10, 2006 - 4:14 AM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
what brand is it? what is your vac at idle? what engine is this on?
This post has been edited by lagos: Feb 10, 2006 - 4:14 AM -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Feb 10, 2006 - 4:17 AM
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Enthusiast Joined Jan 13, '06 Currently Offline Reputation: 0 (0%) |
its a iEguus.
like 20. 7AFE |
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Feb 10, 2006 - 4:25 AM
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Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
QUOTE its a iEguus. im going to take a wild guess and say tha gauge is the problem. ive never seen that brand before. its probably something really cheap and probably not working right? -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Feb 10, 2006 - 5:59 AM
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Enthusiast Joined Jul 10, '05 From Monroe, WA Currently Offline Reputation: 6 (100%) |
from a guessing stand point i would agree, if you have something like an autozone around you rent a tool to measure vacum aside from ur boost gauge, let the motor idle (DO NOT BOOST) and see what type of readings you get, if they are low for the 7a its a possible boost leak, but the gauge itself may be the leak so first test I would do is bypass teh boost gauge line and reconnect the source to how it would be if the gauge did not exist. then retest your vacum (again DO NOT BOOST) with the tool.
-------------------- 94' ST Coupe - 5sfe Motor swap and brake swap.
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Feb 10, 2006 - 8:19 AM
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Enthusiast Joined Aug 30, '02 From San Juan, PR Currently Offline Reputation: 4 (100%) |
You can hear your boost gauge? Hahahaha...sorry man, but that just read too funny.
-------------------- Past - 7A-FTE: Will never forget you
Present - 3rd Gen 3S-GTE: Swap in progress QUOTE (SinisterSinner @ Dec 19, 2009 - 10:52 AM)  I dont want to even think of turbos, they blow up way too often... |
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Feb 10, 2006 - 11:42 PM
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Enthusiast Joined Jan 13, '06 Currently Offline Reputation: 0 (0%) |
QUOTE(celicast3sgte @ Feb 10, 2006 - 4:59 AM) [snapback]391691[/snapback] from a guessing stand point i would agree, if you have something like an autozone around you rent a tool to measure vacum aside from ur boost gauge, let the motor idle (DO NOT BOOST) and see what type of readings you get, if they are low for the 7a its a possible boost leak, but the gauge itself may be the leak so first test I would do is bypass teh boost gauge line and reconnect the source to how it would be if the gauge did not exist. then retest your vacum (again DO NOT BOOST) with the tool. i dont have boost...just got my turbo + manifold today..... dose autozone rent out things like that?....i dont know but i'ma redo my TEE ...it is kinda shady. |
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Feb 11, 2006 - 9:09 PM
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Enthusiast Joined Jan 13, '06 Currently Offline Reputation: 0 (0%) |
i got it....it was the tee..
the area to fit the tee is really small .. 
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Feb 11, 2006 - 11:10 PM
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Enthusiast Joined Jan 13, '06 Currently Offline Reputation: 0 (0%) |
Never mind .
 .............it starts happening under load.
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Feb 11, 2006 - 11:18 PM
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Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
its a crappy cheap gauge.... get autometer, at the very least.
-------------------- 15PSI - 30MPG - Megasquirt Tuned
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Feb 12, 2006 - 12:10 AM
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Enthusiast Joined Jan 13, '06 Currently Offline Reputation: 0 (0%) |
i'ma try another gauge.
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