1995 XJS P0400 Code

Reply Subscribe

Thread Tools

Search this Thread

May 23, 2016 | 09:47 PM

twncty

Thread Starter

Junior Member

Joined: Jun 2014

Posts: 11

Likes: 0

From: las vegas

1995 XJS P0400 Code

My 1995 Jaguar XJS 4.0 started running rough. OBDII pulled error code P0400 exhaust gas recirculation flow. What do I need to look for to troubleshoot? Thanks in advance for your help.

May 23, 2016 | 10:08 PM

Doug

Veteran Member

Joined: Mar 2008

Posts: 25,529

Likes: 11,721

From: Pacific Northwest USA

Others will chime in but I think the cure, as often as not, is to simply remove the EGR valve and clean out the gunk residing in the valve itself and the passageway that feeds it

Cheers
DD

May 23, 2016 | 11:13 PM

twncty

Thread Starter

Junior Member

Joined: Jun 2014

Posts: 11

Likes: 0

From: las vegas

Thanks Doug!! I will clean the EGR, pipes and report back the end result.

Jun 4, 2016 | 01:43 PM

twncty

Thread Starter

Junior Member

Joined: Jun 2014

Posts: 11

Likes: 0

From: las vegas

Cleaned the EGR and pipes. Still had the code. Replaced the EGR. Code is now gone. Now I have code P1313 misfire catalytic damage. The car has an obvious misfire at all rpms.