Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GSAD |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 11/2022] |
Title: 2ZR-FAE (FUEL): FUEL INJECTOR: INSPECTION; 2020 - 2023 MY Corolla [01/2019 - 11/2022] |
INSPECTION
PROCEDURE
1. INSPECT FUEL INJECTOR ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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1 - 2
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20°C (68°F)
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11.6 to 12.4 Ω
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If the result is not as specified, replace the fuel injector assembly.
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*a
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Component without harness connected
(Fuel Injector Assembly)
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(b) Check the operation.
CAUTION:
Perform the inspection in a well-ventilated area.
Do not perform the inspection near an open flame.
(1) Open the cover of the No. 1 fuel pipe clamp and remove the No. 1 fuel pipe clamp from the fuel tube connector.
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Open
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Pull
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(2) Disconnect the fuel tube sub-assembly from the fuel pipe.
Click here
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(3) Connect SST (fuel tube connector) to SST (hose) with SST (hose band), and then connect them to the fuel pipe (vehicle side).
SST: 09268-00010
09268-00030
SST: 09268-31015
09268-41700
95336-08070
NOTICE:
Make sure the SST (fuel tube connector) O-rings are not damaged and are free of foreign matter as they are used to seal the connections between SST (fuel tube connector) and the fuel pipe (vehicle side).
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*a
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SST (Hose)
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*b
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SST (Hose Band)
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*c
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SST (Fuel Tube Connector)
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*d
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Fuel Pipe (Vehicle Side)
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|
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(4) Apply a light coat of gasoline to a new O-ring, and then install the O-ring to the fuel injector assembly.
(5) Connect SST (adapter) and SST (hose) to the fuel injector assembly, and hold the fuel injector assembly and union with SST (clamp).
SST: 09268-31015
09268-41110
09268-41300
09268-41700
95336-08070
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*1
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O-ring
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*a
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SST (Hose)
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*b
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SST (Hose Band)
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*c
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SST (Adapter)
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*d
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SST (Clamp)
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*e
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Vinyl Tube
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|
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(6) Install a vinyl tube to the fuel injector assembly.
CAUTION:
Install a suitable vinyl tube to the fuel injector assembly to prevent fuel from spraying.
(7) Tie SST (clamp) and SST (adapter) together with SST (tie band) as shown in the illustration.
SST: 09268-31015
09268-41800
NOTICE:
-
As SST (tie band) does not completely prevent SST (clamp) from becoming loose, do not subject the parts to any impacts while using them.
-
Before using SST (tie band), make sure that there is no wear, damage or cracks. If there are any abnormalities, replace SST (tie band).
HINT:
When removing SST (tie band), disengage the lock.
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*a
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Lock
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*b
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SST (Tie Band)
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*c
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SST (Adapter)
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*d
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SST (Clamp)
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(8) Check that SST (clamp) and SST (adapter) cannot be easily separated.
(9) Set the fuel injector assembly in a graduated cylinder.
(10) Connect the Techstream to the DLC3.
(11) Turn the ignition switch to ON.
NOTICE:
Do not start the engine.
(12) Turn the Techstream on.
(13) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
Powertrain > Engine and ECT > Active Test
Tester Display
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Control the Fuel Pump / Speed
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(14) Connect SST (EFI inspection wire H) to the fuel injector assembly and battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each fuel injector assembly 2 or 3 times.
SST: 09842-30080
Standard Injection Volume:
Battery Connection
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Condition
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Specified Condition
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Positive (+) battery terminal - Negative (-) battery terminal
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Per 15 seconds
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60 to 73 cc (3.7 to 4.5 cu. in.)
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Difference between Each Fuel Injector Assembly:
13 cc (0.8 cu. in.) or less
NOTICE:
-
Make sure that SST (EFI inspection wire H) is securely connected.
-
Always switch the voltage on and off at the battery side, not the fuel injector assembly side.
If the result is not as specified, replace the fuel injector assembly.
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*a
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SST (EFI Inspection Wire H)
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(c) Check for leaks.
(1) Disconnect SST (EFI inspection wire H) from the battery and check for fuel leaks from the fuel injector assembly.
Standard Fuel Drop:
1 drop or less per 25 minutes
If the result is not as specified, replace the fuel injector assembly.
(2) Connect the fuel tube sub-assembly to the fuel pipe.
Click here
(3) Install the No. 1 fuel pipe clamp to the fuel tube connector and close the cover of the No. 1 fuel pipe clamp.
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