Mazda CX-9 Grand Touring 2009 Manual page 1414

If it is not within the specification, refer to "ENGINE SYMPTOM TROUBLESHOOTING". (See
SYMPTOM DIAGNOSTIC INDEX [MZI-3.7] .)
IDLE SPEED INSPECTION
1. Perform "Engine Tune-up Preparation". (See ENGINE TUNE-UP PREPARATION.)
NOTE:
2. Verify that the idle speed (M-MDS: RPM) is within the specification using M-MDS.
Idle speed (P position)
No load: 570-670 rpm
Electrical load on: 630-730 rpm
Power steering oil pump operation: 600-700 rpm
A/C and heater operation: 570-850 rpm [-40-49 °C {-40-120 °F}]
IDLE MIXTURE INSPECTION
1. Perform "Engine Tune-up Preparation". (See ENGINE TUNE-UP PREPARATION.)
2. Verify that the idle speed and ignition timing are within the specification. (See IGNITION TIMING
INSPECTION.) (See IDLE SPEED INSPECTION.)
3. Insert an exhaust gas analyzer into the tailpipe.
4. Verify that the CO and HC concentrations are within the specified regulation.
If not within the regulation, refer to "ENGINE SYMPTOM TROUBLESHOOTING". (See
SYMPTOM DIAGNOSTIC INDEX [MZI-3.7] .)
Idle mixture
HC concentration: Within the regulation
CO concentration: Within the regulation
DRIVE BELT INSPECTION [MZI-3.7]
GENERATOR & A/C DRIVE BELT
NOTE:
The generator and A/C drive belt deflection/tension inspection is not
necessary because of the use of the drive belt auto tensioner.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
The idle speed cannot be adjusted.
The M-MDS is required to verify the idle speed.