Only
A True Fuel System
Analyzer Can
Conclusively Test Fuel Systems
For:
Mechanical
Defect?
Incorrect
Manifold Vacuum significantly
affects computer controlled
fuel injection system operation
and overall engine performance.
Vacuum formed in the intake
manifold depends on several
things. Engine components such
as: valves, valve guides, valve
springs, pistons, and piston
rings can influence vacuum readings.
Other engine performance factors
include valve timing, manifold
leaks, ignition timing, and
restricted exhaust systems.
Exhaust
Restriction?
Excessive
Back Pressure in the exhaust
can affect the engine's fuel
system and engine performance
dramatically. Large easy to
read dials and a full set of
adapters make it easy to diagnose
restricted intake/exhaust systems.
How
Low Is Your Flow?
Pressure And Flow are two
different measurements! An engines
fuel pressure can be perfectly
normal while a low rate of fuel
flow exists in the system. The
Fuel Zapp let's you zoom in
on the unknown factor of flow.
Measuring fuel system flow should
be no less precise than using
a torque wrench on head bolts
or a micrometer on brake rotors.
Besides being an obvious safety
hazard, flowing gasoline from
an un-pressurized fuel line
into a graduated container,
timed by a stopwatch, is not
an accurate way to measure fuel
systems flow. A worn pump may
be able to provide sufficient
flow until it must generate
enough torque to overcome normal
system operating pressure.
FSA
Buying Guide:
The Fuel Zapp is a top of the
line FSA: high quality construction,
complete adapter hose sets, and
an in depth user manual to guide
you through a wide range of tests.
Not all competitors can match
up. Here are some questions to
ask when deciding between a true
Fuel System Analyzer (FSA)
or a less than adequate fuel system
tester:
Does
the unit test gasoline Fuel
Systems?
The
Fuel Zapp does
Does
the unit test Flex Fuel
Systems?
The
Fuel Zapp does
Does
the unit test Diesel Fuel
Systems?
The
Fuel Zapp does
What
material is used for the
Main Body?
The
Fuel Zapp uses steel,
not cheap plastic
What
material is used for the Flow
Tube?
The
Fuel Zapp uses a shatter-proof
polycarbonate, not fragile
glass
What
type of Fuel Line adapters
are included?
The
Fuel Zapp provides High
Quality Hose Sets, not
universal adapters
Does
the unit test Fuel Pressure?
The
Fuel Zapp does
Does
the unit test Manifold Pressure?
The
Fuel Zapp does
Does
the unit test Exhaust Back
Pressure?
The
Fuel Zapp does
Does
the unit calculate required
fuel volume?
The
Fuel Zapp kit includes
a Fuel Volume Calculator
software
How
long is the Warranty?
Fuel
Zapp includes a 3 year
warranty
Is
the Flow tube assembly servicable?
The
Fuel Zapp flow tubes are
How
does the unit perform a
Flow Demand Test?
The
Fuel ZAPP FSA tests flow
against normal system
pressure.
Some competitors use a
BYPASS valve
and recommend measuring
peak flow by removing
all restriction (and pressure)
to the flow of fuel. As
any good technician will
confirm, a return type
fuel system is always
outputting peak flow even
at idle and testing fuel
system flow should always
be performed while pumping
against normal system
operating pressure (A
weak pump may be perfectly
able to provide adequate
flow until it has to overcome
system pressure). Return-less
type system peak flow
can be tested by commanding
KOEO continuous fuel pump
operation with input from
the tank to the flow meter
and output from the meter
back to the tank while
regulating normal system
pressure with the crimp
pliers included in the
Fuel Zapp kit
Link:
AutoFixWorld.com
review includes detailed
description of returnless type
fuel system testing procedures
Mechanical
Defect?
