Hello, my 1999 towncar wont start.it turns over but wont fire. I smell fuel. the battery has a good charge. the engine dosnt spin as fast as it use to.my battery has no problem starting another car. 2 codes concern me 1-steering vaps2 curcit loop fault. 2-battery voltage out of range. i also found the following codes. b1994, b1869, c1897, u2005, u2008. can my timming have jumped. some times it sounds like it wants to fire up but then just keeps cranking. thanks

SOURCE: 96 towncar turns over but will not start

need to replace the idle air control valve/very easy to do

SOURCE: 1999 Continental will not start

my 97 continial was turning over but would not start so my friend replaced the crank position sensor and she started right up

SOURCE: 1995 Town Car cranks but won't start, intermittent problem

First, try swapping the eec relay with a known good unit and see if the problem persists.
Second, you could be experiencing a problem with your ignition module overheating, causing high resistance in the circuit. When the vehicle sits for a while, the circuit cools and will allow the current to flow again.

SOURCE: 1997 lincoln town car battery drain

Sounds like short ore you leave some dash lights on to drain the unit. If relay start to make you upset die hard made a battire that you could shut off like secuirty thing to shut down the power it cost 150 i dont know they still make it

SOURCE: 1999 lincoln town car no start

In 15 yrs as a master tech I have ever only seen one bad pcm. People always want to jump to that first. That said. If you have spark it is not the theft system making the car not run. If this were the case you would get a no fuel/no spark condition. What about the timing signals, crank, and cam sensors? you can check them with a voltmeter set to AC voltage. The 4.6 is well known for bad individual spark plug coil packs also. Check each cylinder for spark not just one.