Vehicle speed (PID: VSS)
Engine speed (PID: RPM)
Front HO2S current (PID: O2S11)
3. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine
speed is
3,000 rpm or more.
4. Verify that the front HO2S current (PID: O2S11) is
0.25 mA or more
while decelerating as shown in
Fig. 62
.
Fig. 62: Front HO2S Current Graph
Courtesy of MAZDA MOTORS CORP.
If not within the specification, inspect the front HO2S for an open or short circuit. (See
FRONT
HO2S CIRCUIT OPEN/SHORT INSPECTION
.) Then if there is no malfunction in the wiring
harness, replace the front HO2S. (See
FRONT HEATED OXYGEN SENSOR (HO2S)
REMOVAL/INSTALLATION [LF]
.)
FRONT HO2S HEATER RESISTANCE INSPECTION
1. Disconnect the front HO2S connector.
2. Measure the resistance between front HO2S terminals C and D.
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:41:10 PM
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© 2005 Mitchell Repair Information Company, LLC.