The
Flex
Fuel
Wideband
FAILSAFE
Gauge
(PN
30-4910
w/o
Ethanol
Content
Sensor)
displays
Air/Fuel
Ratio,
Boost/Vacuum
and
Ethanol
Content,
and
can
actively
protect
your
engine
from
damage
if
it
runs
lean
or
excessively
rich.
IF
YOU
NEED
AN
ETHANOL
CONTENT
SENSOR
WITH
YOUR
FLEX
FUEL
WIDEBAND
FAILSAFE
GAUGE,
PLEASE
CLICK
ON
PN
30-4911.
The
52mm
(2-1/16”)
Flex
Fuel
Wideband
FAILSAFE
Gauge
includes
a
Bosch
4.2LSU
AFR
wideband
sensor
for
monitoring
and
feedback
of
AFR,
and
an
on-board
boost
sensor
to
read
vacuum
or
boost
pressures
up
to
29
PSI.
It
is
available
with
or
without
an
ethanol
content
sensor
for
users
who
may
already
have
one
(PN
30-4910
no
sensor,
PN
30-4911
includes
sensor).
An
internal
data
logger
is
included
to
capture
approximately
2.5
hours
of
data
on
a
loop,
and
includes
two
analog
outputs
for
logging
AFR,
Boost/Vacuum
and
any
triggered
alarms.
The
gauge
also
includes
a
low
side
output
for
triggering
a
failsafe
strategy
in
the
event
AFR
falls
outside
of
the
operating
window
(see
example
strategies,
below).
This
product
is
a
must
have
for
all
tuned
performance
engines
who
use
Ethanol-based
fuels
like
E85,
either
forced
induction
or
naturally
aspirated.
Any
high
performance
vehicle
owners
who
want
an
accurate
AFR
tuning
tool
with
integrated
logging
and
the
ability
save
an
engine
from
catastrophic
failure
will
want
the
Flex
Fuel
Wideband
FAILSAFE
device.