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Old 05-11-2008, 11:09 PM   #12 (permalink)
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Originally Posted by monroe74 View Post
I'm new here but I think I'll jump in.

diesel: "What is the fifth wire on a wide band"

It might be interesting to notice that the so-called five-wire wideband sensor actually uses an 8-pin connector, and 7 of those pins are used. Two pins are attached to a calibration resistor that is housed in the connector itself. That's why you see only 5 wires traveling from the connector to the sensor.

You can find lots of info about wideband sensors if you google L1H1. The first link that comes up is especially helpful:
Thanks very informative looks like about $250 for the DIY wide band kit.

Ah, i see now wide band looks for hydro carbons on the rich side and oxygen on the lean side.

Last edited by diesel_john; 05-16-2008 at 01:13 AM..
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