Mazda 2: Engine Tune-up
Engine Tune-up Preparation
NOTE:
- If the accelerator pedal is depressed continuously for a specified time,
the engine speed
may decrease to the idle speed. This is due to the fuel cut control
operation, which
prevents overheating, and it does not indicate a malfunction.
1. Verify the following:
- ATX: Selector lever is in P or N position.
- MTX: Shift lever is in neutral position.
2. Warm up the engine to normal operating temperature.
- Increase the engine speed to 2,500-3,000 rpm until the cooling fan
starts
running.
- When the cooling fan starts running, release the accelerator pedal and
wait
until the cooling fan stops running.
3. Turn off all electrical loads.
4. Connect the M-MDS to the DLC-2.
Idle Speed Inspection
NOTE:
- Idle speed is not adjustable.
- Idle speed verification requires M-MDS.
1. Complete the engine tune-up preparation. (See Engine Tune-up Preparation).
2. Verify that the idle speed (M-MDS: RPM PID) is within the specification.
Idle speed (ATX: P, N position , MTX: Neutral position)
Ignition Timing Inspection
NOTE:
- The ignition timing cannot be adjusted.
- The M-MDS is required to verify the ignition timing.
1. Complete the engine tune-up preparation. (See Engine Tune-up Preparation).
2. Verify the ignition timing (M-MDS: SPARKADV) using the PID/data monitor
function of the
M-MDS.
Ignition timing
READ NEXT:
DRIVE BELT INSPECTION
NOTE:
Drive belt deflection/tension inspection is not necessary because of the
use of the drive
belt auto tensioner.
1. Remove the splash shield (RH).
2. Verify that the d
VALVE CLEARANCE INSPECTION
1. Disconnect the negative battery cable.
2. Remove the splash shield (RH). (See DRIVE BELT REMOVAL/INSTALLATION).
3. Remove the fresh-air duct and the air cleaner as a si
VARIABLE VALVE TIMING ACTUATOR INSPECTION
CAUTION:
The variable valve timing actuator cannot be disassembled since it is a
precision unit.
1. Disconnect the negative battery cable.
2. Remove the
SEE MORE:
FUEL-FILLER CAP INSPECTION
Leakage Inspection
1. Perform the following SST (Evaporative Emission System Tester 134-01049A)
self-test:
NOTE:
If the tester does not work correctly during self-test, refer to the
tester
operators manual for more detailed procedures.
Verify that the gas cylinder
WARNING
Never use a cup holder to hold hot
liquids while the vehicle is moving:
Using a cup holder to hold hot
liquids while the vehicle is moving is
dangerous. If the contents spill, you
could be scalded.
Do not put anything other than cups or
drink cans in cup holders:
Putting objects o
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