Durametric - "Catalytic Converter Efficiency"

[trident111]

I just ordered a Durametric to check out why my car (05 996 Turbo S, FVD Flash & Exhaust) is only see .5 bar. No faults or CEL, but on under the Durametric "Ready Status" it shows "Catalytic Converter Efficiency - Fail". Anyone have an idea what this might be?

Thanks

[JFP in PA]

Probably caused by the flash..................

[pierre]

hmmm... What about the obvious: a defective cat? ;)

Here a few links that might help:

http://www.life123.com/cars-vehicles/repair-troubleshooting/catalytic-converters/catalytic-converter-failure.shtml

http://www.troublecodes.net/articles/catfailure/

http://www.aa1car.com/library/converter.htm

Good luck!

[Michael-Dallas]

If it were me, then I'd

1. put the stock exhaust back on and erase the code

2. if the code returns w/ the stock exhaust, then I'd replace the o2 sensors and erase the code

I'm thinking it's either the cats in your aftermarket exhaust or faulty o2 sensor(s).

/m

[Bruce2010]

I just ordered a Durametric to check out why my car (05 996 Turbo S, FVD Flash & Exhaust) is only see .5 bar. No faults or CEL, but on under the Durametric "Ready Status" it shows "Catalytic Converter Efficiency - Fail". Anyone have an idea what this might be?

Thanks

I'm not familiar with the Durametric diagnostic tool.

But.. can I ask under what conditions you ran the test.

Catalytic Converters don't run under optimum efficiency

unless they are very hot.

Your efficiency test will be a measure of this.

Yes it true, that the O2 sensor will become less

efficient long before being indicated by the CEL.

You may have a better idea as to when it was last changed.

[wvicary]

Drive the vehicle at highway speeds but at a high RPM for approx 20km's to burn the cats and O2 sensors clean then retest the system.