O2 Sensor Hack?

[geoffbaltz]

I put the SuperSprint Cat Bypass pipes on my '00 C2. Totally satisfied with the setup but I get a CEL P0420 and P0430. I know that these mean the catalyst is not doing it's job - obviously, since they are gone. I started doing some checking and found this post from our V-Dub friends: http://forums.vwvortex.com/zerothread?id=1366095

Very interesting stuff. It looks like using the arrestors may work but we don't have enough room to extend the O2 sensors like they can. One dude brings up a good point - what about putting diodes on the O2 harnesses to always show the correct voltage so the computer thinks the cat is working. I would think that this would not effect the engine management since the O2 sensors before the cats talk to the computer and the O2 sensors after the cats are there to keep us honest.

What is the right voltage? Is there info on this in the 996 repair manual?

Thoughts? Ideas? Comments?

-g

[i300zxtt]

I put the SuperSprint Cat Bypass pipes on my '00 C2. Totally satisfied with the setup but I get a CEL P0420 and P0430. I know that these mean the catalyst is not doing it's job - obviously, since they are gone. I started doing some checking and found this post from our V-Dub friends: http://forums.vwvortex.com/zerothread?id=1366095

Very interesting stuff. It looks like using the arrestors may work but we don't have enough room to extend the O2 sensors like they can. One dude brings up a good point - what about putting diodes on the O2 harnesses to always show the correct voltage so the computer thinks the cat is working. I would think that this would not effect the engine management since the O2 sensors before the cats talk to the computer and the O2 sensors after the cats are there to keep us honest.

What is the right voltage? Is there info on this in the 996 repair manual?

Thoughts? Ideas? Comments?

-g

get something like this:

http://www.o2sensorsimulator.com/?gclid=CO...CFRZXFQodP3uSUA

[Tool Pants]

This is out of my area but I know a little. An oxygen sensor is like a small battery. It sends out voltage. My old Fiat pre ODBII had a single oxygen sensor. I use to test it per the shop manual with a volt meter. I would rev up the engine and watch the volt meter needle swing. It would read up to something like 1 volt.

Every 2 years for the Boxster I have to do a smog test and for 3 tests I had to replace the right rear oxygen sensor. I told Peter Smith I was tired of it and was going to remove the sensor and hook up a battery to the oxygen sensor wires to pass the test. I guess the simulator link does something like this. If you applied the correct voltage it would trick the DME into thnking the voltage was coming from an oxygen sensor.

[geoffbaltz]

I just ordered a simulator from here: http://www.adaptiveperformance.com/

$11.00 for 2 including shipping. I'll let you all know how it goes.