Injection System

MPI Multiport Fuel Injection (MFI) System

Fuel Rail and Fuel Injectors, Assembly





1 Fuel return line
• 25 Nm (18 ft lb)

2 10 Nm (7 ft lb)

3 Safety clip for pressure regulator

4 0-ring
• Always replace

5 Pressure regulator

6 Fuel rail

7 Fuel supply line
• 25 Nm (18 ft lb)

8 Fuel injector safety clips

9 0-ring
• Always replace

10 Fuel injectors

11 0-ring
• Always replace

12 Intake manifold

Intake Manifold, Assembly





1 Intake manifold, upper

2 10 Nm (7 ft lb)

3 20 Nm (15 ft lb)

4 Seal
• Always replace

5 Idle Air Control (EAC) valve -N71-

6 10 Nm (7 ft lb)

7 6 Nm (53 in lb)

8 Flange

9 Intake manifold, lower

10 Seal
• Always replace

11 10 Nm (7 ft lb)

12 Vacuum hose
• For intake manifold change-over valve

13 20 Nm (15 ft lb)

14 Throttle body

15 Seal
• Always replace 16-20 Nm (15 ft lb)

17 EGR valve

18 EGR temperature sensor -G98-
• On lower intake manifold beneath throttle body

19 10 Nm (7 ft lb)

20 Seal
• Always replace

21 10 Nm (7 ft lb)