Forenza 2007

2.0L L4 VIN - Std 6

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Trouble Code: P1137



HO2S Circuit Low Voltage During Power Enrichment Sensor 2

Possible Causes:



Lean condition
 
Sensor
 
Circuit
 
ECM
 

Trouble Code: P1138



HO2S Circuit High Voltage During Decel Fuel Cut-Off (DFCO) Sensor 2

Possible Causes:



Rich condition
 
Sensor
 
Circuit
 
ECM
 

Trouble Code: P1166



HO2S Circuit Low Voltage During Power Enrichment Sensor 1

Possible Causes:



low fuel level
 
sensor
 

Trouble Code: P1391



Rough Road Sensor Performance

Possible Causes:



Sensor
 
Circuit
 
ECM
 

Trouble Code: P1392



Rough Road Sensor Circuit Low Voltage

Possible Causes:



Sensor
 
Circuit
 
ECM
 

Trouble Code: P1393



Rough Road Sensor Circuit High Voltage

Possible Causes:



Sensor
 
Circuit
 
ECM
 

Trouble Code: P1396



WSSD Rough Road System Fault

Possible Causes:



Circuit
 
ECM
 

Trouble Code: P1397



WSSD Rough Road - Serial Data Fault

Possible Causes:



Circuit
 
ECM
 

Trouble Code: P1516



Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

Possible Causes:



Throttle body
 
Circuit
 
TAC
 
ECM
 

Trouble Code: P161B



Control Module Torque Performance

Possible Causes:



Excessive airflow
 
ECM
 

Trouble Code: P2096



Post Catalyst Fuel Trim System Too Lean Bank 1

Possible Causes:



Vacuum leakage
 
Exhaust gas leakage
 
Fuel injector malfunction
 
HO2S and/or its circuit
 
A/F sensor and/or its circuit
 
Engine compression
 
Valve clearance
 
Intake and exhaust valve
 
Valve timing
 
ECM
 

Trouble Code: P2097



Post Catalyst Fuel Trim System Too Rich Bank 1

Possible Causes:



Vacuum leakage
 
Exhaust gas leakage
 
Fuel injector malfunction
 
HO2S and/or its circuit
 
A/F sensor and/or its circuit
 
Engine compression
 
Valve clearance
 
Intake and exhaust valve
 
Valve timing
 
ECM
 

Trouble Code: P2101



Throttle Motor Control Motor Circuit Range / Performance

Possible Causes:



Throttle motor and/or its circuit
 
ECM
 

Trouble Code: P2104



Throttle Actuator Control (TAC) System - Forced Idle

Possible Causes:



Throttle body
 

Trouble Code: P2105



Throttle Actuator Control (TAC) System - Forced Engine Shutdown

Possible Causes:



Fuse
 
ECM circuits
 
ECM
 

Trouble Code: P2106



Throttle Actuator Control (TAC) System Performance - Throttle Limitation Active

Possible Causes:



Throttle body
 

Trouble Code: P2110



Throttle Actuator Control (TAC) System - Forced Limited Engine Speed

Possible Causes:



Throttle body
 

Trouble Code: P2119



Throttle Closed Position Performance

Possible Causes:



TAC motor and/or circuit
 
Throttle body
 
ECM
 

Trouble Code: P2122



Accelerator pedal position sensor 1 circuit low input

Possible Causes:



Harness or connectors
 
(The APP sensor 1 circuit is open or shorted.)
 
Accelerator pedal position sensor
 
(Accelerator pedal position sensor 1)
 

Trouble Code: P2123



Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

Possible Causes:



APP sensor and/or circuit
 
ECM
 

Trouble Code: P2127



Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage

Possible Causes:



APP sensor and/or circuit
 
ECM
 

Trouble Code: P2128



Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage

Possible Causes:



APP sensor and/or circuit
 
ECM
 

Trouble Code: P2135



Throttle/Pedal Position Sensor/Switch -A- / -B- Voltage Correlation

Possible Causes:



TP sensor and/or its circuit
 
Throttle body assembly
 
ECM
 

Trouble Code: P2138



Accelerator Pedal Position (APP) Sensor 1-2 Correlation

Possible Causes:



APP sensor and/or circuit
 
ECM
 

Trouble Code: P2187



System Too Lean at Idle Bank 1

Possible Causes:



Oil level gauge
 
Oil filler cap
 
Engine oil
 
Coolant
 
Air intake system
 
Exhaust system
 
MAF & IAT sensor and/or its circuit
 
EVAP canister
 
EVAP canister purge solenoid valve
 
HO2S and/or its circuit
 
HO2S heater and/or its circuit
 
Engine mechanical system
 
Fuel system
 
ECM
 

Trouble Code: P2188



System Too Rich at Idle Bank 1

Possible Causes:



Oil level gauge
 
Oil filler cap
 
Engine oil
 
Coolant
 
Air intake system
 
Exhaust system
 
MAF & IAT sensor and/or its circuit
 
EVAP canister
 
EVAP canister purge solenoid valve
 
HO2S and/or its circuit
 
HO2S heater and/or its circuit
 
Engine mechanical system
 
Fuel system
 
ECM
 

Trouble Code: P2282



Intake Manifold Air Leak

Possible Causes:



Air leak
 

Trouble Code: P2297



HO2S Performance During Decel Fuel Cut-Off (DFCO) Sensor 1

Possible Causes:



Sensor
 

Trouble Code: P2610



ECM / PCM Internal Engine Off Timer Performance

Possible Causes:



ECM power supply circuit and/or ground circuit
 
ECM
 

Trouble Code: P2A01



O2 Sensor Circuit Range / Performance (Bank 1, Sensor 2)

Possible Causes:



Exhaust system leakage
 
HO2S and/or its circuit
 
ECM
 

Trouble Code: U0073



Control Module Communication Bus Off

Possible Causes:



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