Home/Lexus/IS F/Lexus IS F I (2007-2014)/Repair manual/Fuel System/Fuel (service Specifications)

Contents

Section: Fuel System

All sections

Fuel (service Specifications) Lexus IS F I

Fuel System

SERVICE DATA

Fuel pressure	196 to 588 kPa (2 to 6 kgf*cm 2 , 28 to 85 psi)
Fuel pressure : Remains as specified for 5 minute after engine stopped	147 kPa (1.5 kgf*cm 2 , 21 psi) or more
Fuel pressure (for high pressure) : At engine warm up and idle	3.5 to 4.5 MPa (35.7 to 45.9 kgf*cm 2 , 508 to 653 psi)
Injector (for port injection)	Resistance: 11.6 to 12.4 ohms at 20°C (68°F)
Injector (for port injection)	Injection volume: 72.3 to 75.2 cm 3 (4.4 to 4.6 cu in.) per 15 seconds
Injector (for port injection)	Fuel drop: 1 drop or less in 24 minutes
Injector (for direct injection)	Resistance: 2.01 to 2.31 ohms at 20°C (68°F)
Fuel pressure sensor : Apply 5 V between terminals 3 and 1	Terminal 2 and 3 voltage: 0.5 V
Fuel pump	Resistance: 0.2 to 3.0 ohms at 20°C (68°F)
Fuel pump (for high pressure)	Resistance: 1.19 to 1.39 ohms at 20°C (68°F)
Fuel pump resistor	Resistance: 0.30 to 0.34 ohms at 20°C (68°F)
Fuel sender gauge assembly	6.5 to 8.5 (Float level F)
	6.5 to 229.6 (Float level E to F)
	224.6 to 229.6 (Float level E)
Fuel sender gauge	6.5 to 8.5 (Float level F)
	6.5 to 184.9 (Float level E to F)
	180.9 to 184.9 (Float level E)

TORQUE SPECIFICATIONS

Part Tightened		N*m	Kgf*cm	Ft.*lbf
Fuel delivery pipe (for Direct Injection) x Cylinder head		21	214	15
Separator case x Cylinder head		10	102	7
No. 4 fuel pipe sub-assembly x Delivery pipe (for Direct Injection)	For use with union nut wrench	27	275	20
	For use without union nut wrench	30	306	22
Delivery pipe (for Port Injection) x Intake air surge tank		21	214	15
Fuel pressure pulsation damper x Fuel tube sub-assembly	For use with SST	35	357	26
Fuel pressure pulsation damper x Fuel tube sub-assembly	For use without SST	40	408	30
Delivery pipe x Wire harness		10	102	7
Fuel pipe x Cylinder head cover		10	102	7
Fuel pressure pulsation damper x Fuel pump	For use with SST	34	347	25
Fuel pressure pulsation damper x Fuel pump	For use without SST	40	408	30
Water hose bracket x Cylinder head cover		10	102	7
Water hose bracket x Cylinder head		10	102	7
Fuel pressure sensor x Delivery pipe (for Direct Injection)	For use with SST	40	409	30
Fuel pressure sensor x Delivery pipe (for Direct Injection)	For use without SST	44	449	32
Relief valve x Delivery pipe (for Direct Injection)		40	408	30
Injector driver x Intake air surge tank		7.5	76	66 in.*lbf
Fuel tank vent tube set plate x Fuel tank		6.0	61	53
No. 3 fuel pipe x Delivery pipe (for Direct Injection)		10	102	7
Fuel pump (for High Pressure) x Cylinder head cover		25	255	18
No. 3 fuel pipe x Fuel pump (for High Pressure)	For use with SST	27	275	20
No. 3 fuel pipe x Fuel pump (for High Pressure)	For use without SST	30	306	22
No. 2 fuel pipe x Delivery pipe (for Direct Injection)		10	102	7
No. 2 fuel pipe x Fuel pump (for High Pressure)	For use with SST	27	275	20
No. 2 fuel pipe x Fuel pump (for High Pressure)	For use without SST	30	306	22
No. 2 fuel pipe x Cylinder head cover		10	102	7
Fuel pump resistor x Body		5.0	51	44 in.*lbf
No. 1 fuel tank breather tube sub-assembly x Fuel tank		1.5	15	13 in.*lbf
Fuel tank band x Body		39	400	29
No. 3 fuel tank protector x Fuel tank		5.5	56	49 in.*lbf
No. 4 fuel tank protector x Fuel tank		5.5	56	49 in.*lbf
Parking brake cable assembly x Body	For bolt A	6.0	61	53 in.*lbf
Parking brake cable assembly x Body	For bolt B	19	193	14
Fuel sender gauge x Fuel tank		1.5	15	13