I was about to buy an EGR valve when I noticed that it looked like an EGR from an early 90s Chevy 350. So I picked one up from Autozone for $49 vs the $220 that most stores wanted for a Jag part. Its basically the same thing and bolted up perfectly. Did a 40mile drive to and from work today and no more FF39 code.

 

Can you please post a part number or a link to help those that might want to follow your lead?

 

Dang it! Yeah I thought the same thing when mine was throwing a code, but decided there was probably something different about it so I spent $143 on one from Amazon drrrrrrrrrr

 

Delphi EG10099 it bolts right up and works as good as the expensive replacements

 

I was going to ask it you think it would fit a 1996 4.0 Litre but I just went to look at mine and they do not look at all alike

 

yours looks like the later version used on the 1998 GM 350. The part looks identical, even the 5 pin connector looks the same

 

Thanks, Brewtech. I am not yet sure if that is my problem but it is good to have that information in my back pocket.
I checked the Rockauto site and my 1996 XJS can apparently use the same EGR valve as some engines in several GM and other vehicles:
BUICK LESABRE 1996-2001 BUICK PARK AVENUE 1995-2001 BUICK REGAL 1996-2001 BUICK RIVIERA 1995-1999 CHEVROLET CORVETTE 1993-1995 CHEVROLET IMPALA 2000-2001 CHEVROLET LUMINA 1996-1999 CHEVROLET MONTE CARLO 1996-2001 CHEVROLET OPTRA 2004-2007 DAEWOO LANOS 1999-2002 DAEWOO LEGANZA 1999-2002 DAEWOO NUBIRA 1999-2002 JAGUAR VANDEN PLAS 1995-1997 JAGUAR XJ6 1995-1997 JAGUAR XJR 1995-1997 JAGUAR XJS 1995-1996 OLDSMOBILE 88 1995-1999 OLDSMOBILE 98 1995-1996 OLDSMOBILE CUTLASS SUPREME 1996 OLDSMOBILE INTRIGUE 1998-1999 OLDSMOBILE LSS 1996-1999 OLDSMOBILE REGENCY 1997-1998 PONTIAC BONNEVILLE 1995-2001 PONTIAC GRAND PRIX 1996-2001 SUZUKI FORENZA 2004-2008 SUZUKI RENO 2005-2008