Driving
Y
our Mazda
5-57
J Tachometer*
The tachometer shows engine speed in
thousands of revolutions per minute
(RPM). Use it while selecting shift
points and to prevent lugging and over-
revving.
Some vehicles are equipped with an
engine speed (RPM) limiting device
contained
within the Powertrain
Control
Module (PCM). The purpose of this
device is to maintain peak engine speed
(RPM) below a specified limit. This
feature
i
s o
nl
y e
viden
t o
n a
utomatic
t
rans-
mission
v
ehicles
w
he
n s
hiftin
g m
anually
(1, 2, D) and on all manual transmission
units. (Engine speed limits may vary
based on engine displacement).
If you are experiencing an ‘‘engine cut-
out’’
condition at high speeds, it may be
the result of this limiting device. It is a
normal
condition
and can be avoided by
reducing engine/vehicle speed.
NOTE
The needle may move slightly when
the ignition switch is at ACC or ON
with the engine off. This is normal
and will not affect accuracy once the
engine is running.
NOTE
If
t
h
e 4
.0
L e
ngin
e e
xceed
s 5
200
R
PM,
the powertrain control module will
restrict fuel flow to maintain engine
speed at or below 5200 RPM. This
function
p
rotect
s t
he
e
ngin
e a
n
d s
hould
be
c
onsidere
d n
orma
l o
peration.
*Some models.
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