NO.10 LOW IDLE/STALLS DURING DECELERATION [MZI-3.5]
DESCRIPTION AND POSSIBLE CAUSES
If the TR PID is not normal:
z
Inspect TR switch and related
wiring harness for vibration or
intermittent open/short circuit.
If the PSP PID is not normal:
z
Inspect power steering switch
and related wiring harness for
vibration or intermittent
open/short circuit.
4
Is there air leakage felt or heard at
intake-air system components while
racing engine to higher speed?
Yes
Repair or replace parts if necessary.
No
Inspect the following:
z
Electronic throttle control
system operation
z
Accelerator pedal position
sensor
5
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not
available, replace the PCM.
(see
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
10
LOW IDLE/STALLS DURING DECELERATION
DESCRIPTION
z
Engine stops unexpectedly at the beginning of deceleration or recovery from
deceleration.
z
Vacuum leakage Improper operation of electronic throttle control system
z
Air leakage from intake-air system
z
Improper air/fuel mixture ratio control
z
Evaporative emission control system malfunction
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:37 AM
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