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Air / fuel ratio gauge installation 

 

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 Post subject: Air / fuel ratio gauge installation
Posted: Thu Jun 28, 2007 8:57 pm 
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i have a 8860 ecu, i just purchased a autometer a/f r gauge, and was looking at this wideband lambda kit, would this be all i would need? no wideband controller etc? i have heard that wideband O2 sensors should only be used for tuning as they dont have a very long life expectancy?
so how would steer around this problem, the plan was to remove the existing O2 sensor, does anyone have a solution

http://purchasenet.com.au/shopping/wide ... -1380.html

cheers in advance

 

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Posted: Thu Jun 28, 2007 11:04 pm 
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so no one can help me out?

 

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Posted: Sat Jun 30, 2007 1:13 am 
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I'm no expert on this, however I doubt it could be connected to the stand alone autometer gauge you have without a corresponding controller.

For instance, I have a AEM wideband kit and the AEM controller is installed in the gauge itself. The separate wideband o2 sensor is installed in addition to your normal engine o2 sensors, so again I doubt you can do what you are thinking of.

The AEM is designed for permanent installation so I would suspect life expectancy to be reasonably good. Mine has been operating every day for the past few years with no issues.

Probably best to email Innovate direct and ask them what this kit can actually be used for and how etc.
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Posted: Sat Jun 30, 2007 12:13 pm 
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so im going to have to weld another bung in the exhaust manifold, i thought i may be able to get away with just replacing the narrowband oxy sensor with the wideband, but obviously not. i'll have to look into it, btw thanks for your reply ozrunner

 

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Posted: Sat Jun 30, 2007 12:20 pm 
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but on the website it writes as follows...

"and can be connected directly to a
aftermarket ECU for tuning for closed-loop lambda control"

can anyone give me a definitive answer with this one :?

 

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Posted: Sat Jun 30, 2007 10:35 pm 
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blacksabbath189 wrote:
so im going to have to weld another bung in the exhaust manifold, ....

Yep :D

Again I would interpret the statement on their website as meaning with this "kit" you can connect it to an ecu and the a/f ratios will be displayed on your laptop etc.

I doubt it can be hooked to an autometer gauge without the necessary controller, however check with autometer if their gauge also includes the controller. I assume its a proper wideband gauge :D
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Posted: Sun Jul 01, 2007 12:54 am 
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i have figured out i have to purchase part no 2244, which includes wideband oxy sensor and wiring harness, there are 3 wires on the harness from the sensor, one is signal, easy enough, but the other two heater ground and heater power, is this just power? they have to go to the PCM powertrain control module, american for ECU, so what wires would i use etc? ... cheers

 

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Posted: Sun Jul 01, 2007 12:56 am 
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just power and ground? or is it different, cheers

 

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Posted: Sun Jul 01, 2007 1:24 am 
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3 wires sounds like a narrowband sensor or pseudo-wideband.

There have been a number of threads on this topic in the past - doing a search might help you out.

In short, you need a wideband sensor and controller. There is no way around it, a wideband sensor will not work without the controller. The innovate LC-1 you linked to in your first post is not a bad choice (although you can get them cheaper elsewhere). You would normally just pull the factory O2 sensor out and replace it with the wideband. Your 8860 will take the WB input and if you need something to keep a factory ecu happy (eg your running your 8860 piggy back and want to keep the ecu out of LHM) get something with narrowband output and wire that back into the ECU loom.

The life of a wideband sensor really isn't a problem. The sensors themselves are not expensive (depending where you shop they can be cheaper than narrowband).

 

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