Mazda 2009 RX-8, Service Highlights

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ON-BOARD DIAGNOSTIC [13B-MSP]
01-02–15
01-02
P2271 HO2S signal stuck rich
x
The PCM monitors the input voltage from the HO2S when the following conditions are met. If the input voltage
is more than 0.85 V for 40 s , the PCM determines that the HO2S signal remains rich.
MONITORING CONDITIONS
—
ECT: more than 70
q
C {158
q
F}
—
Engine speed:
more than 1,500 rpm
—
MAF amount: more than 10 g/s {1.32 lb/min}
—
Short term fuel trim:
20–20 %
—
Long term fuel trim: 50–50 %
—
Target A/F feedback system status: feedback control
End Of Sie
KOEO/KOER SELF-TEST [13B-MSP]
id0102g1100400
KOEO/KOER self-test table
N/A: Not applicable
DTC No.
Condition
Test condition
2009MY 2008MY KOEO KOER
B1342 N/A PCM malfunction
u
—
P0030
m
A/F sensor heater control circuit problem — —
P0031
m
A/F sensor heater control circuit low input
u u
P0032
m
A/F sensor heater control circuit high input —
u
P0037
m
HO2S heater control circuit low input
u u
P0038
m
HO2S heater control circuit high input —
u
P0076*
3 m
VDI solenoid valve control circuit low input
u u
P0077*
3 m
VDI solenoid valve control circuit high input — —
P0101
m
MAF sensor circuit range/performance problem — —
P0102
m
MAF sensor circuit low input —
u
P0103
m
MAF sensor circuit high input
u u
P0107
m
BARO sensor circuit low input
u u
P0108
m
BARO sensor circuit high input
u u
P0111
m
IAT sensor circuit range/performance problem — —
P0112
m
IAT sensor circuit low input
u u
P0113
m
IAT sensor circuit high input
u u
P0116
m
ECT sensor circuit range/performance problem — —
P0117
m
ECT sensor circuit low input
u u
P0118
m
ECT sensor circuit high input
u u
P0122
m
TP sensor No.1 circuit low input
u u
P0123
m
TP sensor No.1 circuit high input
u u
P0125
m
Insufficient coolant temperature for closed loop fuel control — —
P0126
m
Insufficient coolant temperature for stable operation — —
P0130
m
A/F sensor circuit problem —
u
P0131
m
A/F sensor circuit low input —
u
P0132
m
A/F sensor circuit high input —
u
P0133
m
A/F sensor circuit slow response — —
P0134
m
A/F sensor no activity detected —
u
P0137
m
HO2S circuit low input — —
P0138
m
HO2S circuit high input
u u
P0139
m
HO2S circuit slow response — —
P0171
m
System too lean —
u
P0172
m
System too rich —
u
P0222
m
TP sensor No.2 circuit low input
u u
P0223
m
TP sensor No.2 circuit high input
u u
P0300
m
Random misfire detected — —
P0301
m
Front rotor misfire detected — —
P0302
m
Rear rotor misfire detected — —
P0327
m
KS No.1 circuit low input
u u
P0328
m
KS No.1 circuit high input
u u