ENGINE TUNE-UP PREPARATION
1. Verify that the selector lever is in the P position.
2. Connect the M-MDS to the DLC-2.
3. Turn off the electrical loads.
4. Verify that no DTCs are available.
5. Warm up the engine as follows.
1. Start the engine.
2. Perform no-load racing at
2,500-3,000 rpm
for
3 min.
(ECT is
approx. 80 °C {176 °F}
or more)
3. Release the accelerator pedal.
4. Wait until the cooling fans stop.
Fig. 2: Identifying DLC-2 Part Location
Courtesy of MAZDA MOTORS CORP.
IGNITION TIMING INSPECTION
1. Perform "Engine Tune-up Preparation". (See
ENGINE TUNE-UP PREPARATION
.)
2. Verify that the ignition timing (M-MDS: SPARKADV) is within the specification using M-MDS
function.
Ignition timing Approx. BTDC 13°
3. Verify that ignition timing advances when the engine speed increases gradually.
NOTE:
z
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.
NOTE:
z
The ignition timing cannot be adjusted.
z
The M-MDS is required to verify the ignition timing.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:01:56 AM
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© 2005 Mitchell Repair Information Company, LLC.
