I respectfully disagree. I have had an in dash O2 monitor installed in my
truck for about ten years with no ill affects in performance or mileage.
On the contrary I have used it to T/S several problems .

 224K+ miles, same engine, same ECU.

Good Luck and Drive Safely
Ken Lewis
86 Crewcab, 60 356 T-5
http://Neksiwel.20m.com/

On Tue, 12 Nov 2002 20:10:52 -0500 Dennis Haynes <dhaynes@OPTONLINE.NET>
writes:
.....A long lead will cause all sorts of problems as the O2 sensor
circuit is low voltage, long wires will  pick up electrical noise and
cause erratic operation......

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