Mazda CX-9 Grand Touring 2007 Manual page 284

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
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5] .)
Idle mixture
HC concentration: Within the regulation
CO concentration: Within the regulation
2007 Mazda CX-9 Grand Touring
2007 ENGINE Mechanical (MZI-3.5) - CX-9