0261520448
BOSCH 0261520448 Pompe Haute Pression Jeep Wrangler JL Alfa 2.0T Hurricane
68249673AA, 68249673AB, 68249673AC, 0261520449, 50051489, 50053438Integrated Pulse-Width Modulated Electric Inlet Metering Valve-200 barCompatibilité véhicules et motorisations
| Véhicule | Moteur | Années |
|---|---|---|
| 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 |
Spécifications techniques
| Spécification | Valeur |
|---|---|
| Pump Generation | Bosch HDP-5 Compact Gasoline Direct Injection Pump |
| Max Operating Rail PressureSpéc. clé | |
| 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 ResistanceSpéc. clé | |
| 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 |
| Pression de serviceSpéc. clé |
Pompe haute pression associée (Ensemble circuit de carburant)
Fonctionne sur le même circuit haute pression Common Rail. En cas de chute de pression (P0087), vérifier le débit de la pompe avant de remplacer les injecteurs.
Conseils de montage
- [
- {
- "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."
- }
- ]
Codes de Defaut (DTC) & Protocoles de Diagnostic
Codes de defaut diagnostiques (DTC) courants déclenchés lorsque cet injecteur common rail subit une usure, des pannes de circuit ou une dérive d'étalonnage:
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.
Protocoles Techniques de Diagnostic & Réparation
Procédures d'atelier vérifiées, seuils de test et guides d'intervention pour cet ensemble.