The VP44 injection pump is the heart of the
’98.5-’02 Dodge Cummins 24V engine—and now the experts at BD Diesel
Performance have used their 36 years of diesel fuel system experience to
bring you the ultimate high performance VP44.
Strategic durable mechanical modifications to this
pump produce higher pressure, which results in better atomization,
instant throttle response, improved fuel economy, and up to a 100 hp
gain. And, because programmers and tuners for these engine model years
only modify injector pulse width and timing, they can be used in
addition to the BD High Performance VP44.
Because of the high fuel delivery produced, it is
recommended for use with the BD Super B Single or Twin Turbo system to
provide optimum air-fuel ratios.
Free shipping and Free return shipping of the core for 48
states. No core charge required if core is returned in 30 days. Cores not
returned in 30 days will be charged the $400 core charge.
Click here for instructions for
removal and replacement:
Mopar1973Man vp44 instructions -- A great site for people who want to know what
is going on with their truck.
You-tube
Video part 1 of 5 for those who need more visuals.
VP44 info:
The VP44 Is dependant on the lift
pump for Cooling and Lubrication. If the lift pump fails or is unable to keep
10psi of fuel pressure then your pump is susceptible to damage, overheating and
failure.
Often if your VP44 failed the
root cause is a bad or failing lift pump. The stock pump does not supply
sufficient pressure for stock power. It is mounted to the engine block and has
to push through some small fittings and lines that act as a restriction, even
worse the pump has to pull fuel all the way from the tank and electric pumps are
designed to PUSH not PULL fuel. The in tank pump recommended by Dodge dealers
is not really any better it may flow a slightly higher volume but at pressures
even lower than the stock pump. It is placed inside the fuel tank to keep it
cool and reduce failures, but when it fails you are out another $500 for the
dealer to drop your tank and replace the pump again.
Defective VP44 Codes:
The retrieval of codes does not constitute an engine diagnosis.
However, there are some codes that usually indicate a defective injection pump.
A current P1688 always means that the pump is bad, there is no further diagnosis
required. Code P0216 is probably the most common code for VP44 Pumps. If
transfer pump pressure has been checked and is O.K., the injection pump is
defective. Other codes that are less common are P0180, P0181, P0215, P0251,
P0252, P0253, P0254, P0370, P1287, P1689 and P1690. These codes USUALLY, but not
always indicate a defective pump. There are wiring and power checks to be
performed if these codes are present. These codes relate to Dodge pickups only,
and are not for any other ISB application.
