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Friend needs help with Lambda
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Old 04 Dec 2009, 11:20 PM   #1 (permalink)
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Friend needs help with Lambda

I have 2 lambda sensors on my ehaust system. One on the headers and one on the turbo down pipe. The headers one is 3 pin square plug and the downpipe one is 2 pin round plug. After speaking to James at Le Mont Saint Bodgit and Fukit dept... he says the headers one is... an fuel/air sensor and the downpipe one is a oxygen sensor. Now i only have one fitted and now the check engine light is on. The engine runs better with the headers one in the downpipe. Which one goes where FFS!!!! HEEELLLPPPPPP!!!!!! :O) PS Where can i get a 2 pin round plug Lambda sensor that doesnt cost 179? Tar!

anyone got any ideas
its for a 95 WRX jap import
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Old 05 Dec 2009, 08:43 AM   #2 (permalink)
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Re: Friend needs help with Lambda

downpipe is definately oxygen sensor.
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Old 05 Dec 2009, 05:03 PM   #3 (permalink)
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Re: Friend needs help with Lambda

Response from a mate:

"Well I am assuming the STI is the same as the WRX, Bigals has a WRX, and when we de-catted it, the ECL came on, upon speaking to Dave it Tilleys he told me The sensor in the 2nd section of the downpipe is NOT needed. but if removed you have to fit a resistor, now the wiring from under the car goes up to the drivers side wing, and is one of the plugs next to the other Sensor.
I disconnected the sensor their and replaced it with a resistor as specified.
I cannot for the life of me remember what resistance the resistor has to be however, i quite have litterer hundreds of them.
This put the CEL out and has not caused any issues since, and that has been fitted for years now."

You can get CEL fix from Roger Clark Motorsport.
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