faigolfgti 0 Posted April 4, 2013 Report Share Posted April 4, 2013 cars register in the U.K. before year 1992 don't need CAT,so i refer to vw parts list(etka)there is two type of lambda sensors for vr6 engine one is normal lambda sensor and another type is NON CAT lambda sensor,so my vw vr6 is CAT remove so i am wondering if i change my vr6 lambda sensor to the NON CAT lambda sensor will my vr6 be better performance?I think yes because the emission cotrol of the NON CAT lambda sensor is not as tight as the normal lambda sensor and don't have CAT to taken care of.Please comment! Link to post Share on other sites
rsweeney 40 Posted April 4, 2013 Report Share Posted April 4, 2013 id also be interested do you have a part number for the non cat lambda?i m thinking the wiring coming out of it would probably be different Link to post Share on other sites
UnitedMotorsport 55 Posted April 4, 2013 Report Share Posted April 4, 2013 No performance gain here. As lambda 1 is lambda 1 which is what a narrow band sensor switches at. Its likely to do with temperature differences. Link to post Share on other sites
faigolfgti 0 Posted April 4, 2013 Author Report Share Posted April 4, 2013 The part no for the vw vr6 NON CAT lambda sensor is:-330-906-265 you can Refer this from ETKA,i am sure there is a different if not vw won't make two LAMBDA sensors for NON CAT vr6 and cat vr6? Link to post Share on other sites
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