[Gmecm] Re:Four wire O2 conversion

[Cowen]

Re: applications of LT1 O2 sensors, I haven't found a
four wire LT1 sensor yet.  I looked up the 3 wire
heated O2 sensor from a 1993 LT1 corvette.  It is also
used in the following applications, according to
www.kemparts.com:

Buyers' Guide 

Click part number to display details and photograph.
138-215 OXYGEN SENSOR  
 ACURA 1998-1999 
 BUICK 1993-1997 
 CADILLAC 1994-1996 
 CHEVROLET 1994-2004 
 FORD 1994-1995 
 GMC 1994-1995, 2002-1995 
 HONDA 1996-2001 
 ISUZU 1996-2003 
 OLDSMOBILE 1993-1996 
 PONTIAC 1994-1997 
 
There's more info on models on that site.

Is there a benefit to four wire over three??  To hook
up to a '730?

Thanks

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