Mazda B2300 2001 Manual page 193

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 is only evident on automatic trans-
mission vehicles when shifting manually
(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.
Driving Your Mazda
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 the 4.0L engine exceeds 5200 RPM,
the powertrain control module will
restrict fuel flow to maintain engine
speed at or below 5200 RPM. This
function protects the engine and should
be considered normal operation.
*Some models.
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