haz87

Right the fuel pump will prime. It will also run when the engine is running. However it will not run when the engine is turning over, until the engine is actually going(which takes numerous primes so that it turns on the key)
Any ideas?

haz87

No one?

BlueFiesta85

have you tried another fuel pump relay mate, i had a similar problem but it turned out that i had connected the wires the wrong way around

haz87

Havent touched the wires so i can count them out as its randomly just done it. The relay casing has started to melt but i opened it up and the actual internals are mint. no burning/melting anywhere

SafeChav

Sounds like it could be current starvation.

Try bridging the pump so its runs constant and see if you get the same problem.

Does the engine turn over well or does it sound like its struggling?

haz87

if i bridge it, it works fine. Engine turns and sounds the same

SafeChav

What do you bridge from? Which wire?

vroooom ptssssh

fuel pump relays goosed suerly?

SafeChav

if it was goosed it wouldn't run when the engine was either!

haz87

If i bridge the big red live feed and the black/red wire it works continuously

SafeChav

hmmmmmmmmmm, very odd.

Try another relay just to eliminate it from the equation but i wouldn't of said its that myself

haz87

Ok no luck with a new relay
The wiring from the fuel pump to just inside the car has been replaced with 27amp wire. I had just nabbed it from a mate to replace the crappy wire, didnt realise it was that thick. Would these be causing any problems? It doesnt run all the way up to the relay, just literally replacing the rotting wire that stopped pretty much as soon as it got to the interior of the car

rs will

I HAD A SIMILAR PROBLEM WITH MINE,BUT SOMETIMES IT WOULDN'T START AT ALL, IT TURNED OUT TO BE THE PLUG WHITCH GOES ON TH FUEL PUMP RELAY, AFTER I CUT IT OFF AND WIRED IT DIRECTLY THE PROBLEM WENT. CHECK YOU CONNECTOR TO SEE IF ITS MELTED.

haz87

Rite i can now get it to start however it misfires like fook until i give it 3000+ of revs once and then it clears

SafeChav

possibly over fuelling?

Possibly air in the fuel system?

haz87

Nah ive cracked all the pipes over and taken it for a 40 mile drive. Its fine once it moving and so any air is definitly out the system. Would it definitly be rich opposed to lean? (always get confused when it comes to misfires,lol)

SafeChav

it could be losing pressure when you switch off though

haz87

How can i stop this

SafeChav

check to see if the pressure is being maintained in fuel line before you try and fix anything

haz87

Ill get a gauge on the line asap. Cheers

originalcabbie

I had a similar problem with mine. It turned out to be a faulty regulator at the end of the pump. The reason I found out was that it lodged and starved the engine of fuel. Pain in th arse!

SafeChav

Regulator at the end of the pump?

originalcabbie

apologies should have said non return valve which keeps the pressure after you turn the pump off.

haz87

Right its not holding pressure at all! and it loses it VERY VERY quickly. No leaks anywhere, ive checked the system ten times over now. Fooked accumulator?

haz87

Oh and ive tried a brand new pump as well so its not the non return on the pump

haz87

Bttt! Starting to really get me down now

SafeChav

So you've tried a new pump with a new one way valve and it still loses it?

haz87

No ive tried a new pump(which has a non return valve built into it iirc. I know there should be a non return valve on the actual fuel line yes? But i broke this off about two years ago and its run perfectly since Up until now anyway

SafeChav

no the one way valve screws into the end of the pump, thats what the banjo fitting screws onto on the pump.

What did you break off years ago then.....?

haz87

Oh,lol, i broke off one of those crappy plastic non return valves(like you get in the brake servo vac line) off one of the main fuel lines.

SafeChav

That concerns me a little............one way valve in the fuel line

originalcabbie

metal one for keeping pressure yes. plastic valve on a fuel line????

dont sound good. do you mean the ..........................

Actually I am lost for words.