LC1 connections
Edit - Question - I just finished installing the gauge and im having this problem. The gauge is constantly flickering on and off. Anyone have any ideas?
I was also wondering how come its not possible to use the stock 02 connector for power, ground and analog? Its powered on ignition and im sure the its grounded to the same as the stock ECU is. My main concern is just wiring that 1 analog wire that i will have to send to the stock ECU to keep it happy, is it possible to send it this using the connector? |
You can use the factory sensors power and ground for the LC1.
No problem with that. But the stock ECU needs to have the narrowband signal still going to it unless you plan to use the LC1 to emulate the narrowband, but I dont think thats what you want to know. |
Does the stock O2 sensor heat up? The lc-1 sinks a lot of power into that ground, could be a reason why you can't use it (wiring can't handle).
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Would anyone know which pin is the one required for a direct LC1 to stock ECU on the o2 connector in the engine bay?
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LC1 Connections
I recently installed an LC-1 in our 1997 and tried to have it emulate the stock O2 sensor. It just doesn't work. After a lot of frustration, I took the car into an exhaust shop, had a new bung welded in, and put the stock O2 sensor back. I am now running both sensors (three total in the exhaust system--stock front, stock rear, and the LC-1).
Innovative claims that the LC-1 can emulate the stock O2 sensor in their advertisements, but their message board tells a different story. In my case, I just couldn't get the output adjusted to the range that would always keep the ECU happy. It would be good for a while, but would cause a CEL after a good drive. The only way to clear it was to pull the battery. That got old fast. If you really want to try it, use the 4 wire O2 sensor installation document from Flyin Miata and the wiring diagram for your year Miata, http://www.madracki.com/miata/wiring.html. If you want to do it the easy way, though, spend the $30 to get a new bung welded in. Chris Dobbins |
Originally Posted by Cosmic_Eraser
(Post 304037)
I recently installed an LC-1 in our 1997 and tried to have it emulate the stock O2 sensor. It just doesn't work. After a lot of frustration, I took the car into an exhaust shop, had a new bung welded in, and put the stock O2 sensor back. I am now running both sensors (three total in the exhaust system--stock front, stock rear, and the LC-1).
Innovative claims that the LC-1 can emulate the stock O2 sensor in their advertisements, but their message board tells a different story. In my case, I just couldn't get the output adjusted to the range that would always keep the ECU happy. It would be good for a while, but would cause a CEL after a good drive. The only way to clear it was to pull the battery. That got old fast. If you really want to try it, use the 4 wire O2 sensor installation document from Flyin Miata and the wiring diagram for your year Miata, http://www.madracki.com/miata/wiring.html. If you want to do it the easy way, though, spend the $30 to get a new bung welded in. Chris Dobbins |
Originally Posted by jobambo
(Post 304043)
i just want to keep that stupid CEL off.
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Originally Posted by patsmx5
(Post 304067)
Pull the bulb. Done.
2 things you can expect from san diego, beautiful weather, and smog checks. |
Question - I just finished installing the gauge and im having this problem. The gauge is constantly flickering on and off. Anyone have any ideas?
Problem fixed - I hooked up the purple wire incorrectly. Does anyone know where i can hook up the gauges illumination wire? it says not to use the dimmer. |
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