Mazda MX-5 Miata Sport 2007, Manual

Page: 1990 / 2244

NO.10 LOW IDLE/STALLS DURING DECELERATION [LF]
POSSIBLE CAUSE & DESCRIPTION (LOW IDLE/STALLS DURING DECELERATION [LF])

Electronic throttle
control system
operation

Accelerator pedal
position sensor
6

Verify test results.

If normal, return to diagnostic index to service any additional
symptoms.
(See ENGINE SYMPTOM TROUBLESHOOTING [LF] .)

If malfunction remains, inspect related Service Bulletins and/or
On-line Repair Information and perform repair or diagnosis.

If vehicle is repaired, troubleshooting completed.

If vehicle is not repaired or additional diagnostic
information is not available, replace the PCM.
(See PCM REMOVAL/INSTALLATION [LF] .)
10
LOW IDLE/STALLS DURING
DECELERATION
DESCRIPTION

Engine stops unexpectedly at the beginning of
deceleration or recovery from deceleration.
POSSIBLE CAUSE

Vacuum leakage

Improper operation of electronic throttle
control system

Air leakage from intake-air system

Improper air/fuel mixture ratio control

Evaporative emission control system
malfunction

Accelerator pedal position sensor or related
circuit malfunction

Accelerator pedal position sensor
misadjustment

TP sensor or related circuit malfunction

MAF sensor or related circuit malfunction

Brake switch or related circuit malfunction

Neutral/clutch pedal position switch or related
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:10 PM Page 57 © 2005 Mitchell Repair Information Company, LLC.