[jonno_racing]

may be massivly overfueling then!!

[350hp4agte]

Well my issue was fuel pressure. Reg doesn't open till about 250kpa I was only getting 40 fixed the pump and fired straight up. I thought I had heaps of pressure because when I took the feed line off it was under pressure

[matty_wall]

How did you get the pump to push more fuel through?

[350hp4agte]

Well I had a faulty pump, new out of the box. It couldn't hold pressure I just took it back got a new one, Now works fine

[matty_wall]

Ah OK. I'm wondering if mine might be faulty. I forgot to mention that if I leave the motor for a while it takes agers to start like the pump has to prime the line everytime.

[350hp4agte]

Well I had a pressure guage on my line and the return line off I could start the pumps watch the guage go up with nothing out the return then once it pressurized (quickly) fuel would pump out of the return line.

When I saw your post for the first time I couldn't believe that u wrote what you did, I was literally going to write the same thing so I would definitely look at the pump I would bet my left nutt that will be your problem

[jonno_racing]

matty_wall wrote:

Ah OK. I'm wondering if mine might be faulty. I forgot to mention that if I leave the motor for a while it takes agers to start like the pump has to prime the line everytime.

priming should take 1-3 seconds.

pull the plugs out and see what color they are.

[matty_wall]

the pump primes for the required amount of time. Its the fact that I have to turn it over for way to long before it starts.

Plugs are black.

[jonno_racing]

running rich!! fpr is fucked mate!
surprised its not blowing clouds of black smoke!

[JrZook]

jonno_racing wrote:

running rich!! fpr is fucked mate!
surprised its not blowing clouds of black smoke!

Lol reheheheally?? Deffo points to it! What did you expect when the OP said he wasn't getting any fuel from the return right at the first post?.....

[jonno_racing]

JrZook wrote:

jonno_racing wrote:

running rich!! fpr is fucked mate!
surprised its not blowing clouds of black smoke!

Lol reheheheally?? Deffo points to it! What did you expect when the OP said he wasn't getting any fuel from the return right at the first post?.....

i was thinking along this line however its good to rule everything out as you can!
you guessed this one right tho!

[atari4x4]

jonno_racing wrote:

experience. these are the exact symptoms of a tps playing up... played this game more than once.

cuzz-tec the GTI guy

[JrZook]

jonno_racing wrote:

JrZook wrote:

jonno_racing wrote:

running rich!! fpr is fucked mate!
surprised its not blowing clouds of black smoke!

Lol reheheheally?? Deffo points to it! What did you expect when the OP said he wasn't getting any fuel from the return right at the first post?.....

i was thinking along this line however its good to rule everything out as you can!
you guessed this one right tho!

That process works but it usually end up time consuming and costly if you keep throwing parts at it until its solved. All I was trying to say was to OP did list an issue with the fuel and clearly that is a problem. So in logical sense wouldn't you solve this problem first before jumping to other possibilities?

Matty the regulator can seize if it was left dry for a while. Just for clarification can you post a pic of your fuel rail, inlet, reg and return? It might also run a fuel pulse accumulator on the other side of the rail to the reg which could be mistaken as being the reg.

Dan

[jonno_racing]

not when you have spares mate. as he obviously did.
also its a whole lot harder to diagnose over the internet mate!
i have also run my gti with a fully blocked off FPR and it ran clear!! so depends on the fuel pump on that one mate!

[matty_wall]

Jr: I'll post a pic of it tomorrow as its not at my house. I brought a new 2nd hand fuel rail and fuel pressure reg, installed it today and I noticed that it did run a little better and I was getting more fuel coming out of the return. But its still stuttering when the throttle is pressed and its still stalling out after a short time. I've ordered a new pump Also.

[matty_wall]

Heres a picture of the old rail I took out.

[JrZook]

Cool!

So those 3 pipes on the left in order are inlet, regulator vacuum reference and return.

[matty_wall]

OK. I think its all sorted. Looks like my original pump and the fuel reg died at the same time. With the new pump its running much better.

Thanks for everyone's input!

[350hp4agte]

Good news