986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

VFX · 10-07-2008, 10:20 AM

Hi

This morning my '05 987 generated a CEL so I scanned to get a code...

It gave a P.0421 code with the following error.

WARM UP CATALYST BELOW THRESHOLD

BANK 1

Has anyone had this before?

Will it mean a new cat?

Thanks,

VFX.

.

10-07-2008, 10:20 AM	#1
VFX Registered User Join Date: Nov 2007 Location: Canada Posts: 42	Error code P.0421? Hi This morning my '05 987 generated a CEL so I scanned to get a code... It gave a P.0421 code with the following error. WARM UP CATALYST BELOW THRESHOLD BANK 1 Has anyone had this before? Will it mean a new cat? Thanks, VFX. .