Too much fuel
Posted
#945750
(In Topic #111533)
Newbie
Too much fuel
But the problem i'm having at the moment is to much fuel entering the engine, so much infact it mixed with the engine oil. So I followed a test precedure I found on the site for testing the injectors. (using a switch from the fuseboard and the jars etc) and I've fould no matter where I have the flap on the air box fuel streams out of the injectors. Now the test says that with the fuel flap down no fuel should flow, so does this mean something is wrong with the metering head or does it point to something else. I did disconnect the return pipe but this made no difference.
Any help would be much appreciated.
Thanks Rob
Posted
MOTY 2013
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
I even operated the pin with my hand- holding it in and letting it push out to try and change the rate of fuel through the injectors. With no joy.
There was alot of pressure there enough to actually blow the pin out like a dart, and it was differcult to hold it in by hand. But I just thought this would be right as it does operate at pressure?
Thanks
Posted
MOTY 2013
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
I've now bought another metering head which will hopefully be with me soon. So it will either fix it or rule out the metering head
Posted
MOTY 2013
Ideally you need access to a fuel pressure gauge this will help track down the cause of the fault if neither of the above help
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
I have swapped the warm up regulator with another one I have but this made no difference, but theres always a chance there both faulty? I looked on euro car parts site at the price 8O why are they ?195!
How does the regulator actually adjust the fuel pressure?
Posted
Local Hero
It works by having an internal restrictor/valve which is acted upon by a bimetallic strip (applies a force which varies with temperature). The heat comes from the conduction from the block and a heating element and electrical connection.
Posted
MOTY 2013
The pressure at the top of the metering head actually increases as the engine warms up, which means it takes more force to lift the metering pin as the temperature increases. Therefore when cold the metering pin moves up further for any given air volume than it does when hot, hence making mixture richer when cold
inside the WUR is a bimetalic spring which reduces the amount of fuel allowed to flow thru the wur as it warms up from engine heat. there is also a heater inside it powered by a fuel pump feed, which makes it come 'off choke' quicker. 16v wur has an additional vacuum feed which allows it to control the mixture based on engine load as well as temperature.
I hope all that made sence
ah bugger it, too slow. oh well!
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
Fitted the new metering head and had it running
Posted
MOTY 2013
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
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