Good afternoon.
You need to T into the inlet line at the fuel rail. You can attach the tester at that point. You can rent a tester at a parts store.
Roy
INSPECTION
CHECK FUEL PRESSURE
(a)Check the battery positive voltage is above 12 V.
(b)Disconnect the negative (-) terminal cable from the battery.
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(c)Remove the union bolt and 2 gaskets, and disconnect the fuel inlet hose from the fuel pipe support.
NOTICE:
- Put a shop towel under the fuel pipe support.
- Slowly loosen the union bolt.
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(d)Install the fuel inlet hose and SST (pressure gauge) to the fuel pipe support with the 3 gaskets and SST (union and adapter).
SST 09268-45014 (092684119O, 90405-06167)
Torque: 29 N.M (300 kgf. Cm, 21 ft. Lbf)
(e)Wipe off any splattered gasoline.
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(f)Connect a LEXUS hand-held tester to the DLC3.
(g)Measure the fuel pressure.
Fuel pressure:
301-347 kPa (3.1-3.5 kgf/sq. Cm, 44-50 psi)
If pressure is high, replace the fuel pressure regulator. If pressure is low, check these parts:
- Fuel hoses and connections
- Fuel pump
- Fuel filter
- Fuel pressure regulator
(h)Disconnect the LEXUS hand-held tester from the DLC3.
(i)Start the engine.
(j)Measure the fuel pressure at idle.
Fuel pressure:
301-347 kPa (3.1-3.5 kgf/sq. Cm 44-50 psi)
(k)Stop the engine.
(l)Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure: 147 kPa (1.5 kgf/sq. Cm, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors.
(m)After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove SST to prevent gasoline from splashing.
SST 09268-45014
(n)Reconnect the fuel inlet hose to the fuel pipe support with 2 new gaskets and the union bolt.
Torque: 29 N.M (300 kgf. Cm, 21 ft. Lbf)
(o)Reconnect the negative (-) terminal cable to the battery.
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Friday, December 18th, 2020 AT 10:44 AM
(Merged)
