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Old 07-18-2020, 09:28 PM   #1
MSU120
 
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Boost gauge

I just installed a new mechanical boost gauge. It was zeroed until I took that “pin” out that it comes with. Now, it’s like 2 clicks to the negative when the car is off. When I start the car, it drops to about -20. Haven’t been able to drive it yet to check the boost reading. Is it supposed to be at zero when the car is off? Can you zero them?

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Old 07-19-2020, 06:45 AM   #2
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Old 07-19-2020, 07:05 AM   #3
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Yea, then it will drop to negative when you crank. Hit 5th gear at a low speed and you should see it jump into boost
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Old 07-19-2020, 07:07 AM   #4
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So it’s not supposed to be at zero when the car is off?
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Old 07-20-2020, 04:01 AM   #5
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Quote:
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So it’s not supposed to be at zero when the car is off?
It does if I can recall correctly
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Old 07-20-2020, 06:08 AM   #6
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Logic would tell me, plus any other boost gauge I have seen and used, that it should be at zero when the car is off. Since it’s mechanical and digital, it will most likely read a few PSI below now when running.
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Old 07-20-2020, 09:51 AM   #7
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Quote:
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Logic would tell me, plus any other boost gauge I have seen and used, that it should be at zero when the car is off. Since it’s mechanical and digital, it will most likely read a few PSI below now when running.
Agreed....I think I have a bad gauge. I’ve emailed procharger, hopefully they’ll remedy it.
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Old 07-21-2020, 07:24 AM   #8
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Procharger is sending a new gauge. Great customer service.
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Old 07-23-2020, 04:47 PM   #9
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Replacement gauge installed. Its perfectly zeroed and works great.
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Old 07-24-2020, 08:04 AM   #10
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Good to hear, figured there was a problem. Never seen a gauge that wasn’t at zero when off.
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