PCA SDR • View topic - Best way to pass smog

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Re: Best way to pass smog

Posted: Sat May 29, 2010 1:30 pm

by gocart

Do 944s have an EGR? Some cars have an EGR to control NOx. If they are clogged or not working NOx could be high.

Re: Best way to pass smog

Posted: Sat May 29, 2010 3:57 pm

by Steve Grosekemper

gocart wrote:Do 944s have an EGR? Some cars have an EGR to control NOx. If they are clogged or not working NOx could be high.

Nope... No Porsche that has an oxygen sensor has EGR.

Re: Best way to pass smog

Posted: Tue Jun 01, 2010 8:31 am

by harnishclan

And the winner is Steve (as usual, thanks Steve) with a bad O2 sensor. Will retest this week, but the car will be at the AX in either case.