Air Intake System - Suzuki 2000 Grand Vitara SQ625 Service Manual

6E2-6 ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE)

AIR INTAKE SYSTEM

The main components of the air intake system are air
cleaner, mass air flow sensor, air cleaner intake air
pipe, throttle body, intake collector, idle air control
valve and intake manifold.
The air (by the amount corresponding to the throttle
valve opening and engine speed) is filtered by the air
cleaner, passes through the throttle body, is distrib-
uted by the intake manifold and finally drawn into each
combustion chamber.
Air
EGR
Engine coolant
1. Air cleaner
2. IAT sensor
3. Resonator
4. Intake manifold
5. Intake collector
6. PCV hose
7. Brake booster
COLD HOT
8. Fuel pressure
regulator hose
9. Intake air pipe
10. Throttle body
11. Breather hose
12. Fast idle up thermo wax
When the idle air control valve is opened according to
the signal from ECM (PCM), the air bypasses the
throttle valve through bypass passage and is finally
drawn into the intake manifold.
IAC valve and
fast idle control
system
13. EGR valve
14. TP sensor
15. IAC hose
16. MAF sensor
17. IAC valve
18. Spring