Mazda RX-8 Manual page 604

DTC P0101
DTC P0101 MAF sensor circuit range/performance problem
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM compares the actual MAF amount with the expected MAF amount when
•
the engine is running.
If the throttle opening angle is more than 50 % and the MAF amount is less
than 5 g/s {0.66 lb/min} , the PCM determines that there is a MAF sensor
circuit range/performance problem.
If the ECT is more than 70 ° ° ° ° C {158 ° ° ° ° F} , the engine speed is less than
2,000 rpm and the MAF amount is more than 130 g/s {17.20 lb/min} (MT)
110 g/s {14.55 lb/min} (AT), the PCM determines that there is a MAF
sensor circuit range/performance problem.
Diagnostic support note
This is a continuous monitor (CCM).
•
The MIL illuminates if the PCM detects the above malfunction condition in two
•
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
•
during the first drive cycle.
FREEZE FRAME DATA is available.
•
The DTC is stored in the PCM memory.
•
MAF sensor malfunction
•
Eccentric shaft position sensor malfunction
•
PCM malfunction
•
(w) Engine Diagnostics & Control
Page 41