Gary McEachern wrote: > Hello Volks > I am trying to determine if the VW cat converter is a 2 way or a 3 way > converter. The 3 way uses a Reduction Catalyst employing Platinum and > Rhodiun to reduce NOx emissions in addion to the standard "2 way" > Oxidization Catalyst which employs Platinum to reduce unburned HC and CO > emissions. Modern converters I am told tend to be 3 way. I believe all > converters have the Oxidization Catalyst to reduce HC and CO emissions. > > My Subaru powered Weekender failed for high NOx emissions which means I need > to use a 3 way converter that has the Reduction Catalyst. The converter on > my present exhaust was apparently gutted by the previous owner. > > Any information would be greatly appreciated. > > Gary > > Gary McEachern, Reading Ma. > '90 Westy > '87GL Wolfy Weekender SubaVanagon > '75 Spitfire > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com It seems to me that high NOx can be caused by an engine running too lean, which may be caused by a malfunctioning O2 sensor-lambda control system or various vacuum leaks, etc. See the Bosch fuel injection manual. Larry A. |
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