I've been suspecting that my AEM water/meth injection (WMI) kit hasn't been working quite right, so I decided to check it over and add a flow sensor for some peace of mind.
Stuff I used:
AEM Flow monitor
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I placed the flow sensor is inline after my filter and before my check valve. I ran the sensor cable through the fender (be sure to use a grommet) and up through the driver's A-pillar into the cabin.
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A Scosche double-din install kit I got from Amazon. Here's a pic with a test fit of the gauge:
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I used a 2" hole saw to make the opening for the gauge, used the sanding attachment on the Dremel to get it to the 52mm diameter I needed to get the gauge in. Then I used the Dremel to cut the piece I needed off the faceplate. As it is right now, this piece "press fits" into the opening where the cubby used to be. The plastic cubby surround itself had to come out, as the gauge is a little too big to fit in there without that extra room. The gauge has a USB connection that works in conjunction with the AEM software you download from their user forum. The cable would typically be run to the glove-box or center console, but I decided to put a connector on it that screws into the faceplate piece - I just keep a USB-A/USB-A cable to plug into the gauge and laptop when I need it.
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Gauge color is customizable, here's a pic in red:
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I set the gauge up through the software for the max flow of 500cc and placed the appropriate faceplate on the gauge. It also comes with black and silver bezels:
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During the install I found some loose hose connections and replaced one of the quick connectors on the pump which was leaking. You basically use the software to adjust upper and lower limits for the flow curve. If you spray too much a "high" error light comes on, too low and the "low" error light comes on. If any flow data points fall outside the limits you set you get an error light and flashing needle/gauge to alert you. Here's a pic checking my flow curve with the injector nozzle removed and spraying into an empty jug by pressing the "test" button several times on the WMI controller:
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You then refine the limits by monitoring the flow data under actual driving conditions, on/off throttle, different gears etc., once you have some usable data you can adjust your limits accordingly. Do I really need this setup? No, but it's nice to know that a hose hasn't disconnected or that a tube has worked its way out of a fitting. Besides, it's cool and I'm entertained by it
.
Stuff I used:
AEM Flow monitor
I placed the flow sensor is inline after my filter and before my check valve. I ran the sensor cable through the fender (be sure to use a grommet) and up through the driver's A-pillar into the cabin.
A Scosche double-din install kit I got from Amazon. Here's a pic with a test fit of the gauge:
I used a 2" hole saw to make the opening for the gauge, used the sanding attachment on the Dremel to get it to the 52mm diameter I needed to get the gauge in. Then I used the Dremel to cut the piece I needed off the faceplate. As it is right now, this piece "press fits" into the opening where the cubby used to be. The plastic cubby surround itself had to come out, as the gauge is a little too big to fit in there without that extra room. The gauge has a USB connection that works in conjunction with the AEM software you download from their user forum. The cable would typically be run to the glove-box or center console, but I decided to put a connector on it that screws into the faceplate piece - I just keep a USB-A/USB-A cable to plug into the gauge and laptop when I need it.
Gauge color is customizable, here's a pic in red:
I set the gauge up through the software for the max flow of 500cc and placed the appropriate faceplate on the gauge. It also comes with black and silver bezels:
During the install I found some loose hose connections and replaced one of the quick connectors on the pump which was leaking. You basically use the software to adjust upper and lower limits for the flow curve. If you spray too much a "high" error light comes on, too low and the "low" error light comes on. If any flow data points fall outside the limits you set you get an error light and flashing needle/gauge to alert you. Here's a pic checking my flow curve with the injector nozzle removed and spraying into an empty jug by pressing the "test" button several times on the WMI controller:
You then refine the limits by monitoring the flow data under actual driving conditions, on/off throttle, different gears etc., once you have some usable data you can adjust your limits accordingly. Do I really need this setup? No, but it's nice to know that a hose hasn't disconnected or that a tube has worked its way out of a fitting. Besides, it's cool and I'm entertained by it
.
