Subject	Bosch 02 Sensors, wiring and resistors
Posted by	z-spott[HI] on August 21, 2008 at 2:40 AM
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Message	I've installed Bosch sensors about a month ago, i've been wanting to set them right ever since but never really came around to it, but now i want to at least advance the timing without audible detonation. so, bosch 02 sensors have three wires(red, black, white), and when all three wires are connected i get a reading of 2550 mV(millivolts) yes, 2550 mV, and when the red and black wires are connected i get 320mV. research showed that normal working 02's use a volt from 450mV(lean) and 600mV (rich). so you can imagine what 2550mV sounds like on a Z, idle is similar to hunting. very laggy... is there anything i can do? i've tried resistors but none have worked, 1k OHM resistors dont even help. k thanks. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I Pledge of Allegiance to the Z......[picture the Z w/o them pods.]
Follow Ups	Bosch 02 Sensors, wiring and resistors - z-spott[HI] 02:40:28 08/21/08 Two of the wires are for the heating element. - kkrofft (OH) 06:56:17 08/21/08 I am using a Snap-on diagnostics tool to measure the mV. - z-spott[HI] 19:00:24 08/21/08 the mV stays stationary, the value dosent go up or down. - z-spott[HI] 20:03:14 08/21/08 The white wire HAS to be connected for the O2's to work. - kkrofft (OH) 14:59:26 08/22/08 so to clarify, all three wires? (n/m) - z-spott[HI] 19:42:02 08/22/08 Actually, you can omit the heater wires in a pinch. - kkrofft (OH) 08:42:40 08/27/08
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