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Discussion Starter · #1 ·

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The Cobalt one is driven via the ECM, it is possible, but most likely involves quite a bit of splicing etc.

You may be better off buying a mechanical Autometer gauge, and swapping in the faceplate.

EDIT - That's the RPD, it shows almost everything the engine montors, IAT's Wideband, boost, G's etc. Not possible to retrofit. Even in a cobalt, it requires swapping in the entire dash harness.

I thought you were referring to the standard gauge;

 

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2009 Mysterious GXP Coupe #100 (sold)
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If you want something multifunctional like that, I have the Aeroforce Interceptor in both my performance cars.
 

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If you want something multifunctional like that, I have the Aeroforce Interceptor in both my performance cars.
Yep ^ What he just said. Here is a picture of mine installed in my old 2.4 Red Solstice.

 

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If you want something multifunctional and even way less expensive than interceptors, look into the Dashawk. That's what I run, and you can set up multiple screens so that you can watch different things depending on what you are doing.
 

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If you want something multifunctional and even way less expensive than interceptors, look into the Dashawk. That's what I run, and you can set up multiple screens so that you can watch different things depending on what you are doing.
I don't believe the Dashhawk has been made for a few years... What I like about the Interceptor is that it sits in a standard gauge pod.
 

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I don't believe the Dashhawk has been made for a few years... What I like about the Interceptor is that it sits in a standard gauge pod.
You're right, it hasn't. I picked mine up off ebay for $150 shipped a few years back. You can still pick used ones up but they are becoming scarce. The issue I have with the interceptors is that for two of them you're looking at $400, not to mention you NEED a gauge pod so tack on that cost too. I just run a $10 windshield mount to hold my dashawk, so I'm all in at $160.
 

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You're right, it hasn't. I picked mine up off ebay for $150 shipped a few years back. You can still pick used ones up but they are becoming scarce. The issue I have with the interceptors is that for two of them you're looking at $400, not to mention you NEED a gauge pod so tack on that cost too. I just run a $10 windshield mount to hold my dashawk, so I'm all in at $160.
Well, kinda.. I have a single Interceptor in a small gauge cup mounted to the top of the steering column. It's out of the way, yet easy to read and looks factory to the casual observer.
 

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I was wondering if anyone knows if it would be possible to use the Cobalt SS gauge on the a-pillar....

(URL deleted by GXP08jrf)

I really like the clean look of it... I'm torn between that one and the one that Tomato Soup has....
Ghost,

I did a little research: The stand-alone boost gage ('08 and previous) in the Cobalt get's it's signal from the J1-25 terminal on the ECM. This terminal is listed as vacant on the Kappas. It's 50/50 on whether that terminal is functioning/calibrated correctly to operate the gage in a Kappa. I'd tend to believe it is. You'd also need to tap into power, ground and the dimmer.

For the programmable version you show in the picture, it still appears to tap into the J1-25, power and ground, but you'd also need to tap into the vehicle CAN for all of the other signals, four additional connections. This can be touchy because the CAN is very sensitive to wiring issues. Again, this would presume the performance display has the proper software out of the box and that it's supported by the body computer.

It's doubtful that any of the appropriate wires exist in the harnesses involved.
 

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Here is my old setup in my old car and planning on doing the same thing in my nex one as well.



 

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Discussion Starter · #14 ·
Thanks everyone for the info. I appreciate it. I wasn't sure if it was possible or not.
 

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Discussion Starter · #15 ·

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EGT requires a special probe and bung be installed in the exhaust. Fairly sure the LNF does not have one.

That PLX should monitor/show these parameters

RPM
Vehicle Speed
Throttle Position
Engine Load
Absolute Engine Load
Engine Timing
Air Intake Temperature
Coolant Temperature
Ambient Air Temperature
Intake Pressure (MAP)
Air Flow (MAF)
Fuel Pressure
Fuel Pressure Relative

Fuel Level
Barometric Pressure
Catalytic Converter Temperature
ECU Voltage
OBD Type
Short Term Fuel Trim (Bank 1)
Long Term Fuel Trim (Bank 1)
Short Term Fuel Trim (Bank 2)
Long Term Fuel Trim (Bank 2)
Oxygen Sensor Voltage1 (Bank 1)
Oxygen Sensor Voltage1 (Bank 2)
Oxygen Sensor Voltage2 (Bank 1)
Oxygen Sensor Voltage2 (Bank 2)

At least per PLX's website.
 

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Isn't the catalytic converter temp basically EGT? In the ballpark anyway since it's another couple inches downstream from where an actual EGT sensor would be.
 

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In my experience, a dedicated A/F gauge is best. Asecond, OBD2 scan gauge is helpful for extra parameters. The Aeroforce shows things like knock, spark retard, iat1/2 etc.
My AeroForce shows A/F ratio and EVERYTHING else under the sun. It has over 50 combinations of things you can monitor. Keep in mind you can only see up to 4 things at a time. Each gauge is split into two settings, one on top of each other inside each gauge. The AeroForce gauges are very underestimated. For $500 you can get 2! Plus a $90 dual gauge pod and it's all plug and play, no wiring required. Also, they show codes when thrown just like a OBD code reader is used for. Best product I have ever bought for both my base and turbo.:yesnod: I don't even have to use the code scanner any more that I bought years ago.
 
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