Part 4
2ZR-FE ENGINE CONTROL: SFI SYSTEM: P1603, P1605; Engine Stall History; 2013 MY Corolla [07/2012 -]
P1605 - Rough Idling
36. CHECK FUEL SYSTEM
(a) Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck.
Result
HINT
If there is foreign matter such as iron particles on the fuel pump, fuel filter or fuel tank, remove the foreign matter.
B -- REPAIR OR REPLACE FUEL SYSTEM
A -- Continue to next step.
37. CHECK FUEL SYSTEM
(a) Check the fuel system.
* Check the fuel pump operation.
* Check the fuel leaks.
* Check the fuel pressure.
* Perform the Active Test [Control the All Cylinders Fuel Cut].
HINT
For the fuel system On-vehicle Inspection, refer to the following procedures Fuel System.
NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK -- END
38. CHECK IGNITION SYSTEM
(a) Perform ignition system On-vehicle Inspection Testing and Inspection.
NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK -- Continue to next step.
39. READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.
Result
HINT
* *1: If the mass air flow meter sub-assembly is malfunctioning and incorrectly measures the intake air volume to be higher than the actual volume of air flowing through the intake air surge tank assembly, the freeze frame data will show a high engine load value.
* *2: As the air fuel ratio sensor output is low before the sensor warms up, the value at that time cannot be used for diagnosis. If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is rich, the actual air fuel ratio will become lean and the engine may stall.
B -- PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
C -- READ FREEZE FRAME DATA
A -- Continue to next step.
40. CHECK MASS AIR FLOW METER SUB-ASSEMBLY
(a) Remove the mass air flow meter sub-assembly Removal.
(b) Check for foreign matter in the air flow passage of the mass air flow meter sub-assembly.
Result
B -- REPLACE MASS AIR FLOW METER SUB-ASSEMBLY Removal
A -- Continue to next step.
41. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
(a) Check the harnesses and connectors, referring to DTC P0102 inspection procedure P0102.
HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
42. PERFORM DRIVE TEST
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature stabilizes.
HINT
The A/C switch and all accessory switches should be off.
(c) Idle the engine.
(d) Using the Techstream, read the value of Calculate Load in the Data List.
Standard:
NG -- REPLACE MASS AIR FLOW METER SUB-ASSEMBLY Removal
OK -- Continue to next step.
43. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
(a) Connect the Techstream to the DLC3.
(b) Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes.
(c) Idle the engine.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / AFS Voltage B1S1.
(f) Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.
Standard:
Result
HINT
The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
B -- READ FREEZE FRAME DATA
A -- Continue to next step.
44. CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR)
(a) Check the harnesses and connectors, referring to DTC P0031 inspection procedure P0031.
HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
NG -- REPAIR AIR FUEL RATIO SENSOR POWER SOURCE CIRCUIT P0031
OK -- Continue to next step.
45. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM)
(a) Check the harnesses and connectors, referring to DTC P2237 inspection procedure P2237.
HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
46. READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.
Result
HINT
* *1: A long time had elapsed after stopping the engine.
* *2: A long time had not elapsed after stopping the engine.
B -- READ FREEZE FRAME DATA
A -- Continue to next step.
47. READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.
Result
HINT
This step is not directly related to engine stall.
B -- INSPECT ENGINE COOLANT TEMPERATURE SENSOR
C -- CHECK FUEL SYSTEM
A -- Continue to next step.
48. INSPECT THERMOSTAT
(a) Inspect the thermostat Testing and Inspection.
Result
HINT
This step is not directly related to engine stall.
B -- INSPECT ENGINE COOLANT TEMPERATURE SENSOR
A -- REPLACE THERMOSTAT Removal
49. READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.
Result
HINT
*: Use an actual outside temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected.
B -- CLEAR DTC
A -- Continue to next step.
50. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Inspect the engine coolant temperature sensor Testing and Inspection.
NG -- REPLACE ENGINE COOLANT TEMPERATURE SENSOR Removal
OK -- Continue to next step.
51. CHECK HARNESS AND CONNECTOR (ECM - ENGINE COOLANT TEMPERATURE SENSOR)
(a) Disconnect the ECM connector.
(b) Disconnect the engine coolant temperature sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- CHECK FOR INTERMITTENT PROBLEMS Check For Intermittent Problems
52. CHECK IGNITION SYSTEM
(a) Perform ignition system On-vehicle Inspection Testing and Inspection.
NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK -- Continue to next step.
53. READ FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.
Result
B -- PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR)
A -- Continue to next step.