What Are These Parts

[R33silverS2]

Ok so i know that these two parts have something to do with the fuel system as they have fuel lines running off them and connect to the fuel rail, but what are they and what do they do exactly?

[hazerb30]

Big one with the red arrow is your fuel filter

Smaller one looks like the fuel pressure regulator.

Edited February 4, 2008 by hazerb30

[Modena]

The silver is fuel filter.

[R33silverS2]

thanks guys, maybe one of the two could be causing my starting issues..

[daryl the pony]

red arrow is your fuel filter

blue arrow is your fuel damper- it stop pulsations within the fuel system

it`s unlikely they might cause starting problems, you might wanna look into some thing like coolant temp senors,leaking injectors,etc

Edited February 4, 2008 by daryl the pony

[R33silverS2]

red arrow is your fuel filter

blue arrow is your fuel damper- it stop pulsations within the fuel system

it`s unlikely they might cause starting problems, you might wanna look into some thing like coolant temp senors,leaking injectors,etc

An hour or so after driving my car and then trying to restart it, the car just cranks and won't fire, yet will fire next go without fail. It seems as if its not getting fuel for some reason... and then when you try and start it again it had sucked up fuel into the lines from the previous starting attemp. Coolant sensor may be a good idea, but it seems to start fine in the morings and when cold so leaking injectors could probably be ruled out. Only has problems to start after its been driven. - like once the fuel has had time to drain away and lose pressure... so not straight way after driven for example, but like an hour later - i have a bosch 040 and seems to have arisen after that went in. But in terms of the heat, sensors sound logical. It is very frustrating...

[daryl the pony]

when you installed the 040 did you leave the bosch check valve in place, i`v always removed it and just used a 5/16 hose tail screw on fitting?

but then again if fuel pressure was droping, it would be a bitch to start in the mornings

just a quick test prime the fuel pump 2-3 time before you start it again........see waht happens

[r33cruiser]

RED one is the fuel filter.

BLUE one is the fuel damper

LMFAO.

hazerb30 u need to do some serious reading and research

Edited February 4, 2008 by r33cruiser

[R33silverS2]

RED one is the fuel filter.

BLUE one is the fuel damper

Cheers thanks for the diagram.

[R33silverS2]

when you installed the 040 did you leave the bosch check valve in place, i`v always removed it and just used a 5/16 hose tail screw on fitting?

but then again if fuel pressure was droping, it would be a bitch to start in the mornings

just a quick test prime the fuel pump 2-3 time before you start it again........see waht happens

I'm not sure whether or not the bosch check valve was used, as i didn't install it, it was put in at a workshop, this workshop is also convinently not around anymore so i cant exactly ring and ask.. :S I have had it checked though and the pump was said to be fine and the install fine too apparently.

I just started the car about an hour after i last drove it (when the problem occurs) and primed it 3 times , ign on, off, on, off, on and the car started no problem....

[daryl the pony]

ok cool

one of two things, you got a problem with the check vavle on the pump.........OR .................

you happen to be another victim of Cheap bosch fuel pumps (i say it`s the pump)

[r33cruiser]

hope u bought it new man. atleast u will have the warrenty

[R33silverS2]

ok cool

one of two things, you got a problem with the check vavle on the pump.........OR .................

you happen to be another victim of Cheap bosch fuel pumps (i say it`s the pump)

Thats what i have always said from the start... the pump, yet I had it taken out and checked by my current tuner / mech and he said it flowed fine and looked all good, and he wasn't the one who put it in, so had no reason to lie or anything. Unless it just doesn't operate properly when the fuel heats up or the lines heat up or something? Cos it starts in the morning fine, (with the 2-3second prime) that whats really confusing me... The check valve, is that like a one way anti-drain valve? I told my mech I wanted to put a Walbro in as a replacement, and he said it wasn't neccasary, the worst thing about it is when its at the shop its hard for the tuner to replicate cos it only happens after the car has been driven and warmend up to operating temp, then left sitting for an hour. Gees maybe its what ive been suspecting all along and the pump just sucks.

[daryl the pony]

i have a rule of thumb:

CARS, Don`t try to understand them.....

Edited February 7, 2008 by daryl the pony

[R33silverS2]

all fixed now, was the pump all along, took it out and replaced it with a different one and it starts no problem at all now.