05 vic, start then die

[MTTECH33]

build date 06/05 Crown Vic 98,000m
problem: starts then dies after 1 or 2 seconds.

died while officer was driving, had to tow back to shop.

basics, voltage good, no fuses blown, no codes present, PO1000 checks incomplete, old air filter had crack along side so i did replace it. throttle body was cleaned prior service. still removed and checked operation. TB good. MAF good. TP an TAC sensors checked good. plugs and COP good. fuel filter was not bad, replaced anyway. problem still present.

more in depth, instructed to replace crank sensor, while doing,checked wireing and harness, no problem found there. still no fix. checked fuel pressure regulater. good. made a make shift shrader valve for rail and after some tests with this vehicle and its sister car, instructed to replace fuel pump. wasnt to sure we had icing on the cake yet but hes the boss. replaced fuel pump and checked connection thru the floor. still no fix.

also forgot to mention we switched the fuel soleniod in the engine compartment fuse box and the that made no difference.

im really leaning toward the computer maybe but i need some different opinions. i feel im on the right track but i covered the basics and im just starting to lose my patience. thanks for the comments.

[MTTECH33]

i also checked out the anit-theft and it was ok, if it was bad i wouldnt even get this thing to fire.

[MTTECH33]

anybody have any ideas or been through this before?

since then i replaced the iac with a good one, same problem. i pulled the tank, drained all the fuel, cleaned lines and fuel rail. put clean fuel in it. still has the same problem.

noid light on injector. at first turn over it flickers bright then slowly dims off as the car dies. i am working with the diagnostics book now and doing one pid at a time. this is probably the route i should have gone first but any suggestions would be helpful. thanks.

[Stick462]

That animal has DBW (Drive Bye Wire) .Some of them have problems with the accelarator ( TBS) sending the wrong feed back to the computer. Some speed up while others barely run or wont accelarate. Ford has too reset the computer to reset the sensor position. That was the first year for DBW on crown victorias

[Stick462]

That animal has drive bye wire (DBW).They have a problem with there accelarator (TPS) pedal not sending the right( electrical signal )information to the computer .Ford has to reprogram the computer if this is the case and reset the porimeters for the DBW.They have been known to bearly run /delay on accelorating ( 2 to 10 sec delay)or high RPM at start up.That was the first year for DBW for crown vics and Mercurys.