Megan Racing Turbo/Boost gauge

Bigwig

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Contributor
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2003.5 Yellow MSP
Got this gauge to replace my Autometer gauge, had installed. It's using the same line I ran to the Autometer gauge, but the Megan gauge needle doesn't sit at the 0 line, it hovers below the 0 line at like 20 or 25, and then as I drive the car, it gets to 0, maybe sometimes over 0 to like 3 or 5...hope that makes sense. I have it to the spot shown in the picture below, any thoughts? I checked to make sure everything is hooked up/sealed tight, and it all checks out. My only other thought is that it needs to be hooked up somewhere else...any info can only help! (searched already for answers, found none)
 
pic of where it's hooked up to
 

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So let me see if I have this right...

At idle your probably at about 25 and as you apply the gas it moves closer to "0". Then as you enter boost it passes zero and continues to climb to 6.5ish (given your on stock boost).Does this sound about right?

If so it's normal, and the gauge is reading vacum and is funtioning correctly. If your autometer wasn't reading vacum before something was wrong, unless the gage was never equipped to do so.
 

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