23209E0012 | Genuine Hino® Injector Set Exh Comb Fuel

1. Improve Fuel Atomization

The injectors spray fuel as a fine mist, not a stream.
This helps the fuel mix perfectly with air for better combustion.

2. Increase Engine Efficiency

Better atomization means:

• More complete burning

• Less wasted fuel

• Better fuel economy

3. Improve Engine Performance

High-quality atomizing injectors give:

• Smoother acceleration

• More engine power

• Stronger throttle response

4. Reduce Emissions

When fuel burns more completely:

• There is less unburned fuel

• Lower carbon buildup

• Cleaner exhaust

• Easier emission control compliance

5. Improve Cold Starts and Idle Quality

Fine mist ignition helps engines start easier in cold temperatures and idle more smoothly.

6. Consistent Fuel Delivery Across All Cylinders

A full injector set ensures every cylinder gets equal fuel flow, preventing:

• Misfires

• Rough running

• Cylinder imbalance

1. Engine Misfires

• One or more cylinders fire weakly or not at all.

• Misfires are often most noticeable at idle or under load.

2. Rough Idle

• Engine shakes or vibrates

• Idle RPM fluctuates
  This happens because fuel delivery becomes uneven.

3. Poor Acceleration or Loss of Power

• Slow throttle response

• Hesitation when accelerating

• Overall weak engine performance

Bad atomization = poor combustion.

4. Increased Fuel Consumption

• Fuel economy drops

• Engine runs rich due to poor spray pattern

5. Hard Starting or No Start

Especially in cold conditions, where fine atomization matters most.

6. Black Smoke or Fuel Smell From Exhaust

• Excess fuel isn’t burning completely

• You may smell raw fuel

This is a classic sign of poor atomization or leaking injectors.

7. Rough Running When Cold

Since atomizing injectors help cold starts, a failing injector can cause:

• Sputtering

• Stalling

• Long crank times

8. Check Engine Light

Common injector-related codes include:

• P0200–P0208 (injector circuit issues)

• P0300–P0308 (misfires)

• P0171/P0172 (lean or rich conditions)

9. Fuel Leaks

Damaged injector seals or nozzles can leak fuel externally or internally.