DIAGNOSTIC PROCEDURE
KNOCKING/PINGING-ACCELERATION/CRUISE DIAGNOSTIC PROCEDURE TABLE
PRECAUTION [LF] .)
(See AFTER SERVICE PRECAUTION
[LF] .)
CAUTION:
Disconnecting/connecting quick
release connector without cleaning it
may cause damage to fuel pipe and
quick release connector. Always
clean quick release connector joint
area before
disconnecting/connecting, and make
sure that it is free of foreign material.
STEP
INSPECTION
RESULTS
ACTION
1
Connect the M-MDS or
equivalent to the DLC-
2.
Access ECT PID.
Verify ECT PID is
less
than 116°C {241°F}
during driving.
Is ECT PID less than
specification?
Yes
Go to the next step.
No
Inspect the cooling system for
cause of overheating.
2
Connect the M-MDS or
equivalent to the DLC-
2.
Access IAT and MAF
PIDs.
Monitor each PID.
(See
PCM
INSPECTION [LF]
.)
Are PIDs normal?
Yes
Go to the next step.
No
IAT PID
: Inspect IAT sensor
MAF PID
: Inspect MAF sensor
3
Connect the M-MDS or
equivalent to the DLC-
2.
Turn the ignition
switch to the ON
position (engine off).
Are there any DTCs
displayed?
Yes
DTC is displayed:
Go to the appropriate DTC
inspection.
(See
DTC TABLE [LF]
.)
No
No DTC is displayed:
Go to the next step.
4
Is engine compression
Yes
Go to the next step.
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Symptom Troubleshooting - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:42:10 PM
Page 76
© 2005 Mitchell Repair Information Company, LLC.