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Aem obdii 30-0311

Old 09-24-2016, 04:22 PM
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NJ_phil
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Default Aem obdii 30-0311

Looks like a great "go to" gauge to go along with other fixed display types.

www.aemelectronics.com/?q=products/gauges/digital-gauges/X-Series/OBDII

Anybody using this? If so, what's your opinion? Looks terrific to me

EDIT: Been running this gauge for a month and it sucks

Last edited by NJ_phil; 11-01-2016 at 10:43 AM.
Old 09-24-2016, 08:18 PM
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speedz06
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Looks pretty cool to me. I just ordered the 0300 kit a couple hours ago.
Its good to have choices but there were too many imo and no clear "best"
I think this 0311 has a cool look.
Old 09-24-2016, 08:43 PM
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Looks pretty neat, but don't think it has the ability to output wideband data over the CAN bus. Not really a big deal unless you're using it for tuning, though.

30-0333 is what I've been using as of late. Looks like AEM is trying to get the most out of this design by having different models for different feature sets. I'd bet they're all the same hardware, only software differences
Old 09-24-2016, 10:20 PM
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Originally Posted by schpenxel
Looks pretty neat, but don't think it has the ability to output wideband data over the CAN bus. Not really a big deal unless you're using it for tuning, though.

30-0333 is what I've been using as of late. Looks like AEM is trying to get the most out of this design by having different models for different feature sets. I'd bet they're all the same hardware, only software differences
Can it be used without the gauge?
Old 09-25-2016, 06:27 AM
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Originally Posted by schpenxel
Looks pretty neat, but don't think it has the ability to output wideband data over the CAN bus. Not really a big deal unless you're using it for tuning, though.

30-0333 is what I've been using as of late. Looks like AEM is trying to get the most out of this design by having different models for different feature sets. I'd bet they're all the same hardware, only software differences
I've got the 03-0333 already but I'm gonna grab one of these for the top pillar location so I can monitor different PIDs as needed. Oil temp, Fuel pressure, Ethenol %. Should be able to tie CAN+ and CAN- to the 30-0333 and avoid another dongle hanging off the ODB port.
Old 09-25-2016, 08:41 AM
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Nice. Says 2008+ only. If it would work on my 2006 I would order one just to get rid of the aeroforce and get an AEM gauge to match the AEM gauge I have now.
Old 09-25-2016, 09:31 AM
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Originally Posted by Unreal
Nice. Says 2008+ only. If it would work on my 2006 I would order one just to get rid of the aeroforce and get an AEM gauge to match the AEM gauge I have now.
Good catch, luckily I'm 2012..Just realized OBDII is only the protocol and up until 2007 vetts ran SAE J1850 and switched to CAN later on. AEM should specify CAN compatibility rather than OBDII on that gauge like they do with the 30-0333.

Do you know if CAN was supported when they moved to the E38 controller while earlier ECMs ran J1850? Kinda makes sense
Old 09-25-2016, 10:21 AM
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All C6's were CAN, even my 2005/E40 is

Last edited by schpenxel; 09-25-2016 at 10:22 AM.
Old 09-25-2016, 10:42 AM
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Originally Posted by schpenxel
All C6's were CAN, even my 2005/E40 is
If all C6's are CAN and OBDII compliant why won't the gauge work in Unreal's 2006?. Something changed with either the hardware or software back in 2008
Old 09-25-2016, 10:46 AM
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CAN was a requirement beginning in 2008 for all vehicles. GM implemented it in 2005 for the C6's, presumably so they wouldn't have to change it later

So--I think it will work fine on Unreal's car. I think AEM is just covering their you know what by saying 2008's and newer.

Last edited by schpenxel; 09-25-2016 at 11:19 AM.
Old 09-25-2016, 10:55 AM
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Originally Posted by sevinn
Can it be used without the gauge?
Depends what you mean by without the gauge... the gauge is the controller, so you can't remove the gauge altogether. I stuffed mine in the glovebox and just use the 0-5V output to run dash logic and the OBD connection for HPTuners.

I wish they had a non-gauge version, but I believe the issue is there isn't an easy way to config the CAN output without having a screen to work with.
Old 09-25-2016, 10:59 AM
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Didn't mean to imply you said it wouldn't work, just "*** umed" it wouldn't work on the 2006. AEM might be saying 2008+ because of the mandate on all cars so the gauge should work on all C6.

PS: Just ordered one

Last edited by NJ_phil; 09-25-2016 at 11:02 AM.
Old 09-25-2016, 11:07 AM
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Sorry about that, edited my post. Bad mood this morning
Old 09-25-2016, 11:16 AM
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Originally Posted by schpenxel
Sorry about that, edited my post. Bad mood this morning
LOL. No problem at all buddy. I'll be the 1st one to admit going out to left field too often on things and need to be reeled back in
Old 09-25-2016, 11:29 AM
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Wait a second....

The gauge uses the 7 segment display to display a label showing what's being monitored, i.e "eth" for ethanol percentage. If the display is used to show "eth" then how is the actual value displayed? Hopefully not just by how many LEDS are on. Would be better to have the monitored value displayed only during PID selection, then the readout display the value along with scaled LEDs
Old 09-25-2016, 12:40 PM
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I'll order one later when I get a chance. I hate my aeroforce and this would match my AEM wideband. Plus it reads ethanol which is nice since my aeroforce doesn't do that.
Old 10-01-2016, 03:23 PM
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Ordered one. For that cheap why not try it, and worst case can always plug it into my mustang.

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To Aem obdii 30-0311

Old 10-01-2016, 04:20 PM
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sevinn
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Originally Posted by schpenxel
Depends what you mean by without the gauge... the gauge is the controller, so you can't remove the gauge altogether. I stuffed mine in the glovebox and just use the 0-5V output to run dash logic and the OBD connection for HPTuners.

I wish they had a non-gauge version, but I believe the issue is there isn't an easy way to config the CAN output without having a screen to work with.
Thanks that's all I needed to know. Getting curious about this vs my plx so I'll probably get one soon.


Last edited by sevinn; 10-01-2016 at 04:20 PM.
Old 10-06-2016, 01:02 PM
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Kick *** gauge. In case you're piggy backing the can onto the WB gauge make sure to connect the GREEN CAN- wire on the 30-0311 to the BRN/WHITE CAN- wire on the 30-0333 and the WHITE CAN+ to the GREEN CAN+. Basically do the opposite of what looks correct.


Minimal wires coming from the pillar:


Last edited by NJ_phil; 10-06-2016 at 01:19 PM.
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Old 10-06-2016, 01:23 PM
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Now if only we could get the Dashlogic to work with the 0333 directly over obd it would be great. That's a nice looking setup with all those matching gauges!

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