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Kyosho Regular Location: Wollongong Registered: November 2004	Re: Is this possible - telling a bad O2 sensor Wed, 12 January 2005 05:13 thechuckster wrote on Tue, 11 January 2005 22:27 just an aditional note about O2 sensors - the 'narrow band' type found in most cars will either indicate lean, stoich or rich. The variation from 0.45V will not indicate how from off stoich the gasses are. 'Wideband' sensors will indicate the actual amount of O2 found in the gas - but these guys (until recently) are very expensive and require a lot more electronics to control and use (e.g. you cant just replace a narrow band unit with a wideband). Also, until an engine is at operating temps and the O2 sensor likewise is at proper temps it will not read correctly and any decent ECu will ignore the O2 readings until then. On the note of prices... My boss bought a wide band UEGO 5V O2 sensor to help tune customer cars... $200 for the sensor... Then it was $800 for the actual computer piece that transferred it into a proper signal that the ECU could use... [Report message to a moderator]

	Subject	Poster	Date
	Is this possible - telling a bad O2 sensor	HighRolla	Tue, 11 January 2005 07:46
	Re: Is this possible - telling a bad O2 sensor	YelloRolla	Tue, 11 January 2005 09:07
	Re: Is this possible - telling a bad O2 sensor	HighRolla	Tue, 11 January 2005 09:26
	Re: Is this possible - telling a bad O2 sensor	Kyosho	Tue, 11 January 2005 09:36
	Re: Is this possible - telling a bad O2 sensor	HighRolla	Tue, 11 January 2005 10:09
	Re: Is this possible - telling a bad O2 sensor	Kyosho	Tue, 11 January 2005 10:23
	Re: Is this possible - telling a bad O2 sensor	colouring_in_book	Tue, 11 January 2005 11:04
	Re: Is this possible - telling a bad O2 sensor	thechuckster	Tue, 11 January 2005 11:27
	Re: Is this possible - telling a bad O2 sensor	HighRolla	Tue, 11 January 2005 11:37
	Re: Is this possible - telling a bad O2 sensor	thechuckster	Tue, 11 January 2005 13:05
	Re: Is this possible - telling a bad O2 sensor	HighRolla	Tue, 11 January 2005 13:13
	Re: Is this possible - telling a bad O2 sensor	Kyosho	Wed, 12 January 2005 05:13
	Re: Is this possible - telling a bad O2 sensor	pannelvan_screema	Fri, 14 January 2005 23:37
	Re: Is this possible - telling a bad O2 sensor	HighRolla	Sat, 15 January 2005 00:30
	Re: Is this possible - telling a bad O2 sensor	colouring_in_book	Sat, 15 January 2005 01:52

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