Car wont run for more than 30 secs...

[bluequattro]

Doesn't sound like pump
Either work or don't
My gt s pump wasn't buzzing the other day, been stood 6 months
Smacked it with a piece I wood n freed it
Can u hear the relay clicking?
Has it an immobiliser that may be playing silly ******s?

[pixsaudisex2]

I had a fuel pump do something like it an a few boost pipes i would have thought ,

[JamesHarrold]

Dont think it is the pump as it just tried it again and it starts and run fine...for about 30-60 seconds, then dies whether youre at idle or part throttle. Try cranking again and nothing at all, just turns over with no fuel pump running. However if I disconnect the battery for a couple of mins and re-connect, hey presto...it starts and runs again...for a minute....
No codes at all...

James

[Error404]

just because the pump runs doesn't mean its generating the right fuel pressue. If there is no residual pressure in the lines after it cuts out by default unless you have a mahoosive fuel leak then the pump isn't producing pressure enough to replenish what the engine consumes

[JamesHarrold]

Dont really want to change the pump unless i am sure this could be the problem...It was changed a couple of years ago and has done less than 1000 miles. Would sitting around for a year not being used cause it to deteriorate...?
I have used fresh v-power in the tank as it was nearly empty...

[Jamo]

I think the question is more like what would prompt the ecu to fuel cut?

[JamesHarrold]

Yep, thats what I think the issue is, a sensor or leak..?

[Error404]

That doesn't explain the lack of any pressure in the fuel lines though

[JamesHarrold]

think I'll change the filter and pump and see if it makes a difference, I would have thought the pump would die and be dead, rather than start working again every time you disconnect the battery for a couple of mins...

[pixsaudisex2]

think I'll change the filter and pump and see if it makes a difference, I would have thought the pump would die and be dead, rather than start working again every time you disconnect the battery for a couple of mins...

i took mine out and it would spray fuel and spin with 12v running..

But it just never had any pressure what so ever,.

mind you probably something else..

Good luck.

[andyg plym]

i took mine out and it would spray fuel and spin with 12v running..

But it just never had any pressure what so ever,.

mind you probably something else..

Good luck.

i have 3 s2 fuel pumps for sale

[JamesHarrold]

I have a spare thanks Andy... changed it a couple of years ago chasing a problem and made no difference so will put the other one back.. Thanks anyway!

[andyg plym]

did you have access to another ecu? i had similar probs before and it was the immobiliser on the ecu

[Rilla]

dont know if its of any help to you, but I had a car that did exactly the same thing (granada cosworth), after weeks of swearing and replacing bits, it was an immobilizer problem. I ended up bypassing it (when I say 'I', I mean the mechanic i got to do it) and it ran like a dream again.

[andyg plym]

when it cuts out does it cough and splutter or just switch itself off? Dodgy maf? Check hot wire and connector? Just trying to think what i would do