0261520448
BOSCH 0261520448 Pompă Înaltă Presiune Jeep Wrangler JL Alfa 2.0T Hurricane
68249673AA, 68249673AB, 68249673AC, 0261520449, 50051489, 50053438Integrated Pulse-Width Modulated Electric Inlet Metering Valve-200 barCompatibilitate vehicule și motoare
| Vehicul | Motor | Ani fabricație |
|---|---|---|
| Jeep Wrangler JL 2.0T | Stellantis / FCA 2.0L GME T4 Hurricane Turbo (EC1 Jeep / Alfa Romeo) | 2018-2024 |
| Jeep Grand Cherokee 2.0T 4xe | Stellantis / FCA 2.0L GME T4 Hurricane Turbo (EC1 Jeep / Alfa Romeo) | 2021-2024 |
| Alfa Romeo Giulia 2.0T | Stellantis / FCA 2.0L GME T4 Hurricane Turbo (EC1 Jeep / Alfa Romeo) | 2017-2024 |
Specificații tehnice
| Specificație | Valoare |
|---|---|
| Pump Generation | Bosch HDP-5 Compact Gasoline Direct Injection Pump |
| Max Operating Rail PressureSpecificație de bază | |
| Drive Mechanism | Camshaft Driven Roller Tappet Interface |
| Mounting Flange Fastener Torque | 10 N·m + 60°(TTY Bolts) |
| High Pressure Output Line Torque | 30 N·m Flare Nut |
| Control Valve ResistanceSpecificație de bază | |
| Typical Diagnostic Trouble Code | P0087 (Fuel Rail Pressure Low - Limp Mode Entry) |
| Wear Item Inspection | Always check roller tappet face for scoring or flat spots during pump replacement |
| Presiune de lucruSpecificație de bază |
Pompă de înaltă presiune compatibilă (Ansamblu circuit combustibil)
Funcționează pe același circuit de înaltă presiune Common Rail. La cădere de presiune (P0087), verificați debitul pompei înainte de a înlocui injectoarele.
Instrucțiuni de montaj
- [
- {
- "step": 1,
- "title": "Depressurize Fuel System Safely",
- "instruction": "Disconnect low pressure tank pump power connector. Crank engine 10 seconds. Check live scan data confirming low pressure fuel drops below 5 bar."
- },
- {
- "step": 2,
- "title": "Inspect & Replace Roller Tappet",
- "instruction": "Extract roller lifter from cylinder head bore. Inspect roller surface and internal bearing for scoring. Replace if surface DLC coating shows signs of wear."
- },
- {
- "step": 3,
- "title": "Set Camshaft to Lowest Base Circle",
- "instruction": "Rotate crankshaft until driving cam lobe is at lowest lift. This minimizes spring resistance when seating new pump onto mounting flange."
- },
- {
- "step": 4,
- "title": "Torque Mounting Bolts with Angle",
- "instruction": "Fit new O-ring lubricated with clean engine oil. Snug bolts down evenly, then torque to 10 N\u00b7m plus an additional 60-degree rotation."
- },
- {
- "step": 5,
- "title": "Secure High Pressure Hard Line",
- "instruction": "Line up high pressure steel line. Hand thread fitting to prevent cross-threading, then torque to 30 N\u00b7m with flare wrench."
- }
- ]
Coduri de Eroare (DTC) si Protocoale de Diagnostic
Coduri comune de eroare de diagnosticare (DTC) declansate atunci cand acest injector common rail sufera uzura, defectiuni de circuit sau abateri:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Protocoale Tehnice de Diagnosticare & Service
Proceduri verificate de atelier, praguri de testare și standarde de intervenție pentru acest ansamblu.