[kermitt]

my ute wont start, (355 stroker)- run for about 2 seconds then idle will drop until it dies, even if throttled, checked spark, new plugs, new leads, must be getting fuel because it starts unless its not getting enough fuel pressure to keep running?... changed fuel filter. even removed exhaust from cats incase its blocked. this has happened before and it started after awhile... but now nothing. any suggestions... fuel pressure test?

cheers
kermitt

[SS1304]

pressure test
map sensor <<<<< i'd bet money on this
If you need one to test i have a stock one here
0439180517

[kermitt]

thanks for that, the motor is the vt 5.0ltr stroked out, does it have the map sensor the same as the earlier 5.0ltrs? mine has the maf airflow sensor piece.

[SS1304]

i'm pretty sure they ran both.

[BLOWN6]

your on the right track when you said about checking the fuel pressure, a knackered afm/map wont stop it from starting/running, trying to put the engine under load is another story though.

[vtclubby]

what happens if you put the boot in a bit as soon as you start it. (enough pressure to give about 3 or 4k rpm?
does it rev? does doing that prolong the length that it stays on for? or does it cause it to cut out instantly?

[patch]

my mate had a simarler problem with his vs but that was a v6 and the problem was the in tank fuel pump. what sort of fule pump you running?

[kermitt]

yeah when it starts you can put revs on it and it would rev, but after a couple of seconds even if your got throttle on or rev it would be as if you didnt and just drop until stalls...

unsure what fuel pumps in it, no doubt bigger, in my experience when the fuel pump packs it in it wont start at all, but i imagine if they get tired they might give enough pressure to start and run for a short period of time?, was thinking of taking the tank out and getting a new one in this weekend maybe, pain of a job if its not...

someone has mention it could be injectors?

[ssv wag]

Not sure but do they have an oil pressure switch, I think some efi setups wont let them run if there is no oil pressure/switch u/s.
just a thought???

[hammondracing21]

ign mod , coil

[patch]

hammondracing21, on 28 October 2010 - 07:07 PM, said:

ign mod , coil

if it was the ignitin module it wouldnt fire. it would just keep cranking over

[kermitt]

yeah the ignition module is pretty new, definatly not module

[patch]

i bet ya it is something so simple thats wrong with it. well it sounds like its a electrical problem so check your distributor, coil ect might have s small problem that ya carnt see by eye

[pacman]

sounds like a good reason to drop a ls3 in it!

[patch]

pacman, on 31 October 2010 - 08:07 AM, said:

sounds like a good reason to drop a ls3 in it!

second that