Poor power/acceleration
Inspection procedure
1.

Check the following items.

2.

If all item are normal, go to "Inspection procedure" procedure as below.

Item

Description

Item

Description

Engine oil

① Maintenance interval

② Oil level

③ Color and viscosity

Air cleaner filter

① Maintenance interval

② Pollution

③ Foriegn substances/blocked

Transaxle

fluid/gear oil

① Maintenance interval

② Fluid/oil level

③ Color and viscosity

Intake hose

① Hose/clamp loosing

② Folding/blocked/damage

③ Crushing/inflating while accelerating.

Coolant

① Maintenance interval

② Coolant level

③ Color and viscosity

Fuel

① Water/foreign substance

② Gasoline/kerosene

③ Solvent/chemical substance

Inspection procedure
3.

Drive the vehicle certain conditions for checking poor power/acceleration.

4.

Is there poor power/acceleration?

→ Sudden poor power occurs and impossible acceleration above certain rpm while driving.

▶ Go to "Poor acceleration" inspection procedure.

→ Lots of black/white smoke is discharged through muffler at accelerating.

▶ Go to "Exhaust fumes is discharged" inspection procedure.

→ Engine hesitation/poor acceleration occur at cold starting. But symptoms disappear after warming up.

▶ Check/repair the glow plug.

▶ Inspect carbon deposit/damage/blocked/widen hole of the injector nozzle after remove the injector.

▶ Remove the fuel filter assembly and check the state of the fuel which remains at the fuel filter.

→ Slight poor power occurs in specific load condition.

▶ Inspect that ECM/PCM has the right IQA code written on the surface of each injector by scantool.

▶ Go to "FTS" inspection procedure.

▶ Go to "ECTS" inspection procedure.

▶ Go to "RPS" inspection procedure.

▶ Go to each inspection procedure after checking poor power/acceleration.

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