NO.19 EXHAUST SMOKE [LF]
POSSIBLE CAUSE & DESCRIPTION (EXHAUST SMOKE)
instrument cluster
indicates normal range
but ECT PID is not the
same as temperature
gauge reading, inspect
the ECT sensor.
If the temperature
gauge on the
instrument cluster
indicates cold range but
ECT PID is normal,
inspect the temperature
gauge and heat gauge
unit.
No
Repair or replace the
malfunctioning part.
5
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 PCM.
(See
PCM REMOVAL/INSTALLATION [LF]
.)
19
EXHAUST SMOKE
DESCRIPTION
Blue, black, or white smoke from exhaust system
Blue smoke (Burning oil):
PCV valve malfunction
Engine internal oil leakage
White smoke (Water in combustion):
Cooling system malfunction (coolant loss)
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:10 PM
Page 91
© 2005 Mitchell Repair Information Company, LLC.