Just a heads up if you or someone you know has a Nissan that is in this group. My Titan was just afflicted by this (towed to dealer today). Get yours or theirs in BEFORE it strands you and possibly kills your cats (I'm 2k over emission warranty )
OFFICAL RECALL FOR THIS ISSUE

Make: NISSAN Model: TITAN
Model Year: 2005
Manufacturer: NISSAN NORTH AMERICA, INC. Mfr's Report Date: OCT 28, 2010
NHTSA CAMPAIGN ID Number: 10V517000 N/A
NHTSA Action Number: N/A
Component: ENGINE AND ENGINE COOLING
Potential Number of Units Affected: 747480
Summary:
NISSAN IS RECALLING CERTAIN MODEL YEAR 2004-2006 ARMADA, TITAN, INFINITI QX56 AND MODEL YEAR 2005-2006 FRONTIER, PATHFINDER AND XTERRA VEHICLES. THE INTELLIGENT POWER DISTRIBUTION MODULE (IPDM) ASSEMBLY CONTAINS AN ENGINE CONTROL MODULE (ECM) RELAY THAT HAS A DIODE FOR ELECTRICAL CURRENT NOISE REDUCTION. THE ECM RELAY MAY ALLOW SILICON VAPOR TO FORM AND, OVER TIME, THE SILICON EVAPORATES FROM THE DIODE MOLDING WHICH CAUSES SILICON OXIDE TO DEVELOP ON THE ECM RELAY CONTACT DUE TO ARCING.
Consequence:
THIS COULD CAUSE ENGINE STALLING INCREASING THE RISK OF A CRASH.
Remedy:
DEALERS WILL REPLACE THE ECM RELAY INSIDE THE IPDM ASSEMBLY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING DECEMBER 2010. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
Notes:
OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .