Intake Throttle Visually Check; Intake Throttle Activation Test; Mass Air Flow Sensor Check; Exhaust Brake Valve Check - Hino Motors HINO 155 series Workshop Manual

2–100

Intake throttle Visually check

D

Intake throttle activation test

Mass air flow sensor check

E

Exhaust Brake valve check

F
ENGINE (J05E)/TROUBLESHOOTING
No excessive dirt inside of throttle
body and no movement between but-
terfly valve and shaft
Engine

Inspection Menu

Intake throttle valve inspection

Start inspection
Engine

Inspection Menu

Amount of intake air flow inspection

Start inspection
1. Park vehicle with parking brake set,
and chock whiles.
2. When click [UP/DOWN] button, the
directed Intake throttle valve posi-
tion changes from 0% to 90% by
10% step.
Confirm actual intake throttle valve
position is followed directed intake
throttle valve.
1. Park vehicle with parking brake set,
and chock whiles.
2. Make accelerator 100% when park-
ing.
Coolant temp must be more than
80C {176F}
3. Click keep and white down the
value. (A)
4. Replace initial MAF to bran new
one.
5. Do again (2) and (3). (B)
Calculation form: {(B)-(A)} / (B) x 100
< 10