Aem Digital Boost gauge help
Jun 9, 2012, 07:30 AM
#1
Aem Digital Boost gauge help
I just bought a boost gauge hooked everything up right and im having a slight problem. It will read vacuum fine but for some reason its slow to react on boost. If im driving and i know im building boost it will stay at 0 maybe move up to 5 but when i fully get on it, it seems to read fine. Jumps to 25 and stays there, so idk if it might be a sensor or is this just a common thing of the digital gauge? i had a tru-boost and it did not act like this. Any info appreciated. thanks
Jun 9, 2012, 10:14 AM
#3
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Yeah something is wrong, I have this gauge aswell and mine doesn't do this.
I would start by rechecking your installation.
Where did you tap in for your boost source?
I would start by rechecking your installation.
Where did you tap in for your boost source?
Jun 9, 2012, 02:05 PM
#5
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im having some what the same issues, i took it to the shop to get installed. but it stays at 0.. i cant push the car since i just got a clutch installed but the highest i got was 14. but once i start the car it wont become -22 or anything
Jun 9, 2012, 09:41 PM
#6
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I have an AEM boost gauge as well and it definitely sounds like a boost source problem. I would recommend tapping into the fuel pressure regulator to intake manifold vacuum line and see where that gets you. I would post a picture or at least let us know where you tapped into. And you may have a more direct answer.
Jun 10, 2012, 07:24 AM
#7
I have an AEM boost gauge as well and it definitely sounds like a boost source problem. I would recommend tapping into the fuel pressure regulator to intake manifold vacuum line and see where that gets you. I would post a picture or at least let us know where you tapped into. And you may have a more direct answer.
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Jun 10, 2012, 01:08 PM
#12
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AEM has excellent customer service and technical support. Since yours was bought brand new, give them a call. Most likely, they'll ask you to ship your gauge and sensor to them for a free check up and they'll send you a new set if yours are found to be defective.
Jun 10, 2012, 06:43 PM
#13
I had the same problem when I switched from the factory boost gauge to the AEM digital boost gauge. Never had any boost gauge problems before the change. I had connected the AEM sensor to the same source as the factory boost gauge...the T-fitting on the fuel pressure regulator. I just shortened the factory line that went to the oem boost gauge, and attached it to the AEM sensor. I immediately had the same weird problems.
I finally discovered that there was a restrictor pill in the factory boost gauge line about 1 inch from the T-fitting. The pill was very similar to the restrictor pill found in the factory electronic boost controller. The hole was so small that I don't think a pin would go through it! I've never heard of this before, and have never seen any other posts about it. I also point out that I bought the car brand new (gauges installed), and no one else had ever worked on it at that point. After replacing the factory piece with a section of new vacuum line, the AEM gauge worked perfectly and has ever since.
I finally discovered that there was a restrictor pill in the factory boost gauge line about 1 inch from the T-fitting. The pill was very similar to the restrictor pill found in the factory electronic boost controller. The hole was so small that I don't think a pin would go through it! I've never heard of this before, and have never seen any other posts about it. I also point out that I bought the car brand new (gauges installed), and no one else had ever worked on it at that point. After replacing the factory piece with a section of new vacuum line, the AEM gauge worked perfectly and has ever since.
Jun 10, 2012, 07:01 PM
#15
I had the same problem when I switched from the factory boost gauge to the AEM digital boost gauge. Never had any boost gauge problems before the change. I had connected the AEM sensor to the same source as the factory boost gauge...the T-fitting on the fuel pressure regulator. I just shortened the factory line that went to the oem boost gauge, and attached it to the AEM sensor. I immediately had the same weird problems.
I finally discovered that there was a restrictor pill in the factory boost gauge line about 1 inch from the T-fitting. The pill was very similar to the restrictor pill found in the factory electronic boost controller. The hole was so small that I don't think a pin would go through it! I've never heard of this before, and have never seen any other posts about it. I also point out that I bought the car brand new (gauges installed), and no one else had ever worked on it at that point. After replacing the factory piece with a section of new vacuum line, the AEM gauge worked perfectly and has ever since.
I finally discovered that there was a restrictor pill in the factory boost gauge line about 1 inch from the T-fitting. The pill was very similar to the restrictor pill found in the factory electronic boost controller. The hole was so small that I don't think a pin would go through it! I've never heard of this before, and have never seen any other posts about it. I also point out that I bought the car brand new (gauges installed), and no one else had ever worked on it at that point. After replacing the factory piece with a section of new vacuum line, the AEM gauge worked perfectly and has ever since.