Map Sensor Inspection; Electric Throttle Body Assembly On-Vehicle; Inspection - Suzuki Swift Sport 2004 Service & Repair Manual

1C-2 Engine Electrical Devices:

MAP Sensor Inspection

1) Remove air cleaner assembly.
2) Disconnect connector from MAP sensor.
3) Remove MAP sensor.
4) Arrange 3 new 1.5 V batteries (2) in series (check
that total voltage is 4.5 – 5.0 V) and connect its
positive terminal to "Vin" terminal of sensor and
negative terminal to "Ground" terminal. Then check
voltage between "Vout" and "Ground". Also, check if
voltage reduces when vacuum is applied up to 400
mmHg by using vacuum pump (3).
If check result is not satisfactory, replace MAP
sensor (1).
Output voltage (When input voltage is 4.5 – 5.5 V,
ambient temp. 20 – 30 °C, 68 – 86 °F)
Altitude (Reference) Barometric pressure
(ft) (m)
0 – 2000 0 – 610 760 – 707 100 – 94 3.3 – 4.3
2001 – 611 – Under 707
5000 1524
5001 – 1525 – Under 634
8000 2438
8001 – 2439 – Under 567
10000 3048
5) Install MAP sensor securely.
6) Connect MAP sensor connector securely.
7) Install air cleaner assembly.
S7RS0B1306002
Output
voltage
(mmHg) (kPa)
94 – 85 3.0 – 4.1
over 634
85 – 76 2.7 – 3.7
over 567
76 – 70 2.5 – 3.3
over 526
I3RM0A130005-01

Electric Throttle Body Assembly On-Vehicle

Inspection

WARNING
!
Never touch throttle valve with finger while
ignition switch is turned ON and accelerator
pedal is depressed. Otherwise, injury may
result by pinching the finger between throttle
valve and throttle body housing.
CAUTION
!
• Do not disassemble electric throttle body
assembly.
• Do not expose electric throttle body
assembly to excessive shock like a
dropping it. If electric throttle body
assembly has been exposed to excessive
shock, it should be replaced.
(V)
• Be careful not to accurate a foreign
material (like dust and/or metallic particle)
to the throttle body housing and/or throttle
valve.
Otherwise, the throttle body assembly is
breaking down by throttle valve accretion.
• Do not apply excessive moving force to
throttle valve for throttle valve operation
check and/or TP sensor performance
check.
Otherwise, the throttle body assembly is
breaking down by damaging the internal
resinous gear of throttle valve actuator.
NOTE
After replacing electric throttle body
assembly, perform calibration of electric
throttle body assembly referring to "Electric
Throttle Body System Calibration".
Throttle Valve Visual Check
1) Remove air cleaner outlet hose.
2) Check that there isn't any foreign matter caught
between throttle valve and throttle body housing. If
there is, take it out after removing throttle body
referring to "Electric Throttle Body Assembly
Removal and Installation in Section 1D" and clean
inside of throttle body thoroughly.
S7RS0B1306003