This injector is found in the 1.4-liter T-Jet / THP and 1.6-liter THP families of engines, co-developed by the PSA (Peugeot/Citroën) and Fiat groups.

Fiat / Alfa Romeo / Lancia:

• Fiat Bravo (199) – 1.4 T-Jet (120hp, 150hp)

• Fiat Linea – 1.4 T-Jet

• Fiat Punto Evo / Abarth – 1.4 T-Jet / Abarth

• Fiat 500L – 1.4 T-Jet

• Alfa Romeo MiTo – 1.4 TB (Turbo Benzina)

• Alfa Romeo Giulietta (940) – 1.4 TB (120hp, 150hp)

• Lancia Delta (844) – 1.4 T-Jet

Peugeot / Citroën:

• Peugeot 207, 208, 308, 3008 – 1.6 THP (VTi, EP6 engine)

• Citroën C3, C4, C4 Picasso, DS3 – 1.6 THP (VTi, EP6 engine)

• Mini (R56, etc.) – 1.6 Turbo (co-engineered with PSA, uses the same EP6/Prince engine)

Important Note: Always double-check your old injector's part number and your vehicle's VIN with a reliable source (like an OEM parts catalog) before purchasing. While this Bosch number is extremely common, there might be different revisions or calibrations for specific model years and engine control unit (ECU) software versions.

Common Symptoms of a Failing 0445110351 Injector

1. Engine Misfires & Rough Idle: A clogged or leaking injector will cause a misfire in its specific cylinder, leading to a rough idle, vibration, and power loss. The check engine light will often flash under load.

2. Poor Fuel Economy: A leaking or stuck-open injector will dump excess fuel into the cylinder.

3. Increased Emissions & Failed Smog Test: Incomplete combustion leads to high hydrocarbon (HC) and carbon monoxide (CO) readings.

4. Hard Starting or Long Crank: If an injector is leaking down, it can cause a "wet" cylinder after the car sits, making starting difficult.

5. Fuel Smell: A severe external leak from the O-ring seals can produce a strong gasoline odor.

6. Carbon Build-Up on Injector Tip: Common in GDI engines, which can affect spray pattern.

Crucial Installation & Service Information

Replacing these injectors is more complex than older port injectors. Professional installation is highly recommended due to the high pressures and precision involved.

1. Cleanliness is Paramount: The fuel system is open during replacement. Any dirt entering the high-pressure fuel rail or injector bore can cause catastrophic damage.

2. Replace ALL Seals: You MUST use a new installation kit. This includes:

• Upper and lower Teflon/FEP sealing rings (go on the injector body).

• Upper and lower copper crush gaskets/seals (for the high-pressure connection).

• A new plastic decoupling element (the white/grey piece that sits above the injector in the cylinder head).

3. Use Proper Lubricant: A special high-temperature copper paste (often supplied with the kit) is applied to the new Teflon seals to allow the injector to slide into the head without tearing. Never use engine oil or standard grease.

4. Coding/Adaptation: On most modern vehicles using these injectors, the new injector's calibration code must be programmed into the engine ECU using a diagnostic scanner (e.g., Delphi, Autel, Bosch, or OEM tools). This is essential for proper fueling and smooth operation. Failure to code them will result in poor performance.

5. Torque Specifications: The hold-down bolt for the fuel rail/injector must be tightened to the exact manufacturer's specification (usually in inch-pounds, not foot-pounds).

   
   

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