Fuel Injector: Inspection: Inspection

INSPECT FUEL INJECTOR ASSEMBLY

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	11.6 to 12.4 Ω

If the result is not as specified, replace the fuel injector assembly.

Inspect the injector injection.

WARNING: Keep the injector away from sparks during the test.

Connect SST (fuel tube connector) to SST (hose) with SST (hose band), and then connect them to the fuel pipe (vehicle side).

SST: 09268-31014
1. 09268-41500
2. 09268-41700
3. 95336-08070

Fig 1: Identifying Hose, Hose Band, Fuel Tube Connector And Fuel Pipe

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	SST (Hose)
*2	SST (Hose Band)
*3	SST (Fuel Tube Connector)
*4	Fuel Pipe

Install the O-ring to the fuel injector.

Connect SST (adapter and hose) to the injector, and hold the injector and union with SST (hose band).

SST: 09268-31014
1. 09268-41110
2. 09268-41300
3. 09268-41700
4. 95336-08070

Fig 2: Identifying Hose, Hose Band, Adapter, O-Ring, Clamp And Vinyl Tube

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	SST (Hose)
*2	SST (Hose Band)
*3	SST (Adapter)
*4	O-Ring
*5	SST (Clamp)
*6	Vinyl Tube

Pass SST (tie band) through the loop on the handle of SST (clamp) to secure SST (clamp) to SST (adapter).

SST: 09268-31014
1. 95336-08070

Fig 3: Identifying Tie Band And Lock

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	SST (Tie Band)
*2	Lock

NOTE:

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 deterioration, damage or cracks. If there are any abnormalities, replace SST.

HINT:

When removing SST (tie band), disengage the lock.

Check that SST (clamp) and SST (adapter) cannot be easily separated.
Install a vinyl tube to the injector.
WARNING: Install a suitable vinyl tube to the injector to contain any gasoline spray.
Put the injector into a graduated cylinder.
Operate the fuel pump.

Connect SST (EFI inspection wire H) to the injector and the battery for 15 seconds and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.

SST: 09842-30080

Fig 4: Identifying EFI Inspection Wire H

Standard injection volume

87 to 105 cc (5.3 to 6.4 cu. in.) every 15 seconds

Standard difference between each injector

18 cc (1.1 cu. in.) or less

TEXT IN ILLUSTRATION

*1	SST (EFI inspection wire H)
	Connect

NOTE:

Make sure that SST (EFI inspection wire H) is securely connected.
Always do the switching at the battery side.

If the result is not as specified, replace the fuel injector assembly.

Check for fuel drop.
1. In the condition above, disconnect the tester probes of SST (EFI inspection wire H) from the battery and check for fuel drop from the injector.
  
  Fig 5: Identifying Fuel Injector Assembly Fuel Drop
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard fuel drop
  
  1 drop or less every 20 minutes
  
  If the fuel drop is not as specified, replace the fuel injector assembly.