986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Possible solution for CEL when using headers on 2000+, an O2 spacer with a mini-cat..

spendy · 04-25-2014, 08:22 AM

My '06 cayman S has headers with hi flow cats and I get cat efficiency codes with them. I've tried both the regular spacer and the mini-cat spacer and neither of them worked in my case. It may be a different story in the earlier cars. My '98 spec boxster has the secondary O2's hanging in the breeze and does not set any codes.

04-25-2014, 08:22 AM	#2
spendy Registered User Join Date: Dec 2012 Location: DE Posts: 126	My '06 cayman S has headers with hi flow cats and I get cat efficiency codes with them. I've tried both the regular spacer and the mini-cat spacer and neither of them worked in my case. It may be a different story in the earlier cars. My '98 spec boxster has the secondary O2's hanging in the breeze and does not set any codes.