I suggest that you check for
fuel pressure at the fuel rail.
How are you controlling
fuel pressure at the engine?
crank it a bit as it should have started and check
fuel pressure at the schroder valve with a cloth and a match stick, squirt??
If you were losing
fuel pressure at speed, I think you may find the pump is either cutting out or losing pressure.
can you confirm
fuel pressure at the rail with a gauge and power at the pump?
If you have good
fuel pressure at idle and it dies before you even have a chance to put a load on it (ie.
Not exact matches
«There is enormous
pressure when a missile reenters the atmosphere... If (electrical) circuits break and a trigger device fails to detonate nuclear
fuel, you can imagine that only some twisted metal will fall on Alaska or Hawaii, even if North Korea fires missiles
at them,» said Kim Dong - yub, an analyst
at Seoul's Institute for Far Eastern Studies.
A number of sources, including pipeline safety experts, believe bitumen to pose a higher spill risk than conventional
fuels when it is transported
at elevated temperatures or
pressure.
When
at full capacity, the theory goes, Canada's economy can't grow much beyond its potential — estimated by the central bank
at 1.6 per cent — without
fuelling price
pressures and prompting rate increases.
«You're looking
at an economy where a lot of consumers are under some serious
pressure from food and
fuel costs.»
Forged documents, varying standards and poor enforcement of rules are
fuelling a flood of non-compliant building product imports that are putting the industry under
pressure and unsuspecting consumers
at risk.
These were
fuelled by the player admitting that he had already turned down the chance to sign a bumper new contract and by Brendan Rodgers and other top brass
at the Merseyside club putting public
pressure on the youngster.
So Conference,
at a time when the public services that pensioners rely on are under such
pressure, we can not continue paying the winter
fuel allowance to the richest five per cent of pensioners.
The sale of some 5 million litres of contaminated
fuel at BOST has been a subject of public discussion in recent weeks with
pressure mounting on the Managing Director of BOST, Alfred Obeng to resign.
Economic
pressures are
fueling a drive by tenants» rights organizers
at the state and city levels to let voters enact rent regulations.
Pressure from the government to cut emissions of greenhouse gases and toxins has engine - makers taking a closer look
at how new
fuels combust
A low -
pressure system near Australia that boosts westerly winds across the Pacific, it helps unlock the heat
fuelling El Niño, says Fei - Fei Jin of the University of Hawaii
at Manoa.
But researchers continue to hunt for materials that can store methane
at low
pressure, which would save energy and the cost of condensing the
fuel.
This approach also relieves
pressure on politicians who want to do something about global warming but don't want to impose burdens on the public, a key consideration
at a time when high
fuel prices and the economy are explosive issues.
A team of University of Texas
at Arlington chemists and engineers have proven that concentrated light, heat and high
pressures can drive the one - step conversion of carbon dioxide and water directly into useable liquid hydrocarbon
fuels.
He says continued
pressure to reduce
fuel usage, greenhouse gases and other pollutants «could lead manufacturers to look
at alternative combustion strategies.
When the electromagnet is switched on, it pushes the piston, squirting
fuel towards the injection nozzle
at high
pressure.
Black holes of stellar mass are the result of gravitational collapse which occurs
at the time when a star «burns out» all its thermonuclear
fuel and the force of the gas
pressure can no longer resist gravity.
This is achieved by the combustion of solid, liquid or gaseous propellant, containing oxidiser and a
fuel, within a combustion chamber
at high
pressure.
An IAEA technical working group in Vienna created the loophole
at the end of last month in response to
pressure from Germany, Britain, France, Belgium and Japan, all of which play a part in the MOX
fuel business.
The ability for UF6 to change easily to a gas
at a low temperature and slightly increased
pressure make it ideal for use in the remaining steps of the
fuel cycle.
Typical systems take hydrogen input
at a low
pressure (7 — 20 bar) and compress in two stages (7 bar - 400 bar - 875 bar) to reach their target
pressure for either
fueling material handling equipment (400 bar) or light - duty
fuel cell electric vehicles (875 bar).
All other sodium reactors use oxide
fuels, while PRISM uses a metal
fuel, an alloy of zirconium, uranium, and plutonium, and the
fuel rods sit in a bath of liquid sodium
at atmospheric
pressure.
Unlike the current generation of light - water nuclear reactors, PRISM uses metallic
fuel, such as an alloy of zirconium, uranium, and plutonium, and PRISM's
fuel rods sit in a bath of a liquid metal — sodium —
at atmospheric
pressure, which ensures that the transfer of heat from the metal
fuel to the liquid sodium coolant is extremely efficient.
Motor needs to be pumped
at the tank when
fuel gets low to maintain
pressure so I presume I have a leak.
So whenever you're tired of looking
at the classic mix of water and oil temperature, oil
pressure, and
fuel level, don't hesitate to call up the lap timer, the tire -
pressure monitor, or the trip computer.
Add this to the fact that
fuel is moving around the system
at massive amounts of
pressure and running with a severed / blocked
fuel return line is a recipe for disaster.
You checked the
pressure at the rail it sounds like so the rail is making
fuel available.
If there is metal in the High
Pressure Fuel Pump, give VWofA a call and see if they can help you out
at all.
One reason it might run for a minute is because the
fuel system will pressurize
at KOEO, and then start to deplete the
pressure as soon as the engine runs.
We are looking
at how the TDI HPFP or High
Pressure Fuel Pumps fail.
It looks as though the brown top injectors you are talking about are 36 lb injectors, meaning they can flow 36 lbs of
fuel per hour
at the stock
fuel pressure.
Check your
fuel pressure - 4psi
at idle / no load.
A new vehicle that has direct injection, variable valve timing (and possibly lift) will usually (not a rule of thumb, though) run less timing due to the
fuel being injected
at higher
pressures.
I dare to say that if there was even the slightest amount of air in a
fuel line, gasoline would explode
at those kind of
pressures.
Other than the rough idle and hard starting there's no problem, the engine has plenty of power
at high rpms and doesn't seem to be misfiring, both of which I think it would have problems with if the
fuel pump wasn't providing sufficient
pressure or volume.
Same if
fuel was not giving proper
pressure at WOT.
The new - technology diesel engines operate quietly and efficiently by injecting the
fuel into the cylinders
at ungodly high
pressures through teensy nozzles.
Regarding your suggestion about insufficient
fuel pressure, the way I read the question the sputtering is not happening
at stable idle, but sudden load reduction.
At higher RPM or under load, the pump would apply more force and you'll get more fuel through, but at lower pressures it won'
At higher RPM or under load, the pump would apply more force and you'll get more
fuel through, but
at lower pressures it won'
at lower
pressures it won't.
You will know
at what RPM the code was popped, what the engine load was, whether the engine was warm and in closed loop mode, if it was overheating, whether the air
pressure / volume was normal, what the
fuel trims were, etc..
@Paulster2 Theoretically by igniting the
fuel sooner a higher combustion chamber
pressure can be achieved
at the moment of the power stroke.
A Roots blower, when used as a «Supercharger» as on a dragster is used
at an over speed rate to provide a high
pressure boost to the
fuel intake.
This is because it will have a race camshaft which opens the inlet valves very early, it may hold the inlet and exhuast valves open
at the same time to improve chamber filling using the negative
pressure in the exhaust (i.e. scavange it's inlet plenum) and it will keep the valves open for as long as possible to let the maximum about of air /
fuel mixture into the cylinders.
Yes the
fuel is
at a serious
pressure, yes the injector is effectively a one - way valve but the main reason it doesn't blow back is the same reason that
fuel isn't pushed back into a carburetor on an older engine.