Dtc P2097 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
(See COMPRESSION INSPECTION
• Is there any malfunction?
INSPECT FUEL INJECTOR
• Inspect fuel injector.
16
(See FUEL INJECTOR
• Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2096 COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the WDS or equivalent.
17
• Perform the PCM Adaptive Memory
Produce Drive Mode.
(See OBD DRIVE MODE
• Is the PENDING CODE for this DTC
present?
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
18
(See AFTER REPAIR PROCEDURE
• Are any DTC present?
DTC P2097
• The PCM monitors the target A/F fuel trim when under the target A/F feedback
control. If the fuel trim is less than specification, the PCM determines that the target
A/F feedback system is too rich.
Diagnostic support note
• This is a continuous monitor. (FUEL SYSTEM)
DETECTION
• The MIL illuminates if the PCM detects the above malfunctioning condition in two
CONDITION
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 conditions
during first drive cycle.
• FREEZE FRAME DATA is available.
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INSPECTION.)
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DTC P2097 [LF]

Target A/F feedback system too rich
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Replace suspected fuel injector, then go to
the next step.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE [LF].)
No Troubleshooting completed.
- automotive repair manuals website
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B3E010202000W05