92 XJS V12 quits while running

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92 XJS V12 quits while running - 6/3/2008 8:07:51 AM    joe92   Posts: 1 Score: 0 Joined: 6/3/2008 Status: offline after engine warm-up and on the road engine quits, and won't re-start.  Engine turns over and really tries to light up but just won't run, very poor, very low idle is all I get.  If I depress the pedal or pump the pedal the engine quits.  This has happened four or five times now.  Could this be a fuel pump problem or is it one of many sensors or relays failing?  The only "Fault Code", I get displayed is FF13 manifold pressure sensor. Post #: 1

RE: 92 XJS V12 quits while running - 6/21/2008 12:20:18 PM    zeroroadkill   Posts: 9 Score: 0 Joined: 6/26/2006 Status: offline Try turning the idle up past 500 rpm. If the idle drops below 500rpm, the engine will stall. I had this happen to me. (in reply to joe92) Post #: 2

RE: 92 XJS V12 quits while running - 6/21/2008 7:39:23 PM    mghirsch   Posts: 12 Score: 0 Joined: 1/4/2008 Status: offline Sounds like a fueling problem.  I doubt it is the fuel pump, but it could be.  Try replacing the fuel filter first. (in reply to zeroroadkill) Post #: 3

RE: 92 XJS V12 quits while running - 6/22/2008 7:55:18 AM    webdesignhelper   Posts: 2 Score: 0 Joined: 6/22/2008 Status: offline i had the same problem with mine, it was fixed by sorting the idling speed (and a full service at the same time made it run sweeter as well.) (in reply to joe92) Post #: 4

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