BOSCH
12698552
Voir les spéc.
SolenoidGM Generation 4 350-bar High Pressure Direct Injection SystemEuro 6330330
BOSCH 12698552 Injecteur Haute Pression Cadillac CT4 CT5 2.0T LSY 350 Bar
Plateforme moteur:GM 2.0L Ecotec Turbo SIDI (LTG / LSY Tripower / LHU) →
RÉFÉRENCE OE
12707255, 0261500690, 0261500691SOUPAPE DE COMMANDE
High-Pressure Solenoid Multi-Hole Injector NozzleNEZ D'INJECTEUR
-PRESSION DE SERVICE
350 barNORME ANTIPOLLUTIONEuro 6d / Tier 3 Bin 30 / LEV3-SULEV30
GARANTIE12 Mois
03
Spécifications techniques
| Spécification | Valeur |
|---|---|
| Type de système | Bosch HDEV6 350-bar High-Pressure Direct Gasoline Injector |
| Pression de serviceSpéc. clé | |
| Spray Pattern | Advanced multi-hole laser-drilled atomizing pattern for Tripower cam profiles |
| Fuel Rail Bolt Torque | 10 N·m (holding bracket retaining bolts) |
| High Pressure Pipe Torque | 28 N·m Flare Nut Connection |
| Coil Resistance | 1.4 - 1.8 Ω at 20°C (High-voltage peak-and-hold driver circuit) |
| Codes défauts fréquents | P0300 (Random Misfire), P0301-P0304 (Cylinder Misfire), P0171 (System Lean Bank 1) |
| Workshop Precaution | Install new Teflon sealing rings using GM pilot tool; never reuse Teflon combustion seals |
ENSEMBLE SYSTÈME
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.
HITACHICorrespondance moteur & châssis exacte
12698484Gasoline Direct Injection (GDI) • 350 bar
🚙 Cadillac Ct5 (LHU)
BOSCHCorrespondance moteur & châssis exacte
0261520135Gasoline Direct Injection (GDI) • 200 bar
🚙 Engine Code LHU
HITACHICorrespondance moteur & châssis exacte
12634491Gasoline Direct Injection (GDI) • 150 bar
🚙 Engine Code LHU
HITACHICorrespondance moteur & châssis exacte
12641847High Pressure Injection System • 150 bar
🚙 Engine Code LHU
HITACHICorrespondance moteur & châssis exacte
12697966Gasoline Direct Injection (GDI) • 200 bar
🚙 Engine Code LHU
CONTINENTALCorrespondance moteur & châssis exacte
12688607Gasoline Direct Injection (GDI) • 200 bar
🚙 Engine Code LHU
04
Conseils de montage
- [
- {
- "step": 1,
- "title": "Depressurize 350-bar Fuel System & Disconnect Battery",
- "instruction": "Depressurize high pressure fuel rail via diagnostic scan tool or fuel pump relay isolation. Disconnect battery 12V negative terminal."
- },
- {
- "step": 2,
- "title": "Remove Upper Intake Ducting & Fuel Rail Shielding",
- "instruction": "Remove charge air piping and acoustic foam insulator. Loosen the high pressure steel fuel rail line (28 N·m) with backup counter-wrench."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Fit New Teflon Sealing Rings",
- "instruction": "Use GM injector puller tool EN-47277 to withdraw injectors. Install replacement Teflon combustion seals using expander and compression guide."
- },
- {
- "step": 4,
- "title": "Torque Rail Fasteners & Check For Fuel Leaks",
- "instruction": "Press injectors into cylinder head bores. Torque fuel rail retaining bolts to 10 N·m. Tighten high pressure line to 28 N·m. Prime system and inspect for leaks."
- }
- ]
05
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:
P0087Critical
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
P0201 - P0208High
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.
P0300 / P0301+High
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
P0088High
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
PROTOCOLES D'ATELIER
Protocoles Techniques de Diagnostic & Réparation
Procédures d'atelier vérifiées, seuils de test et guides d'intervention pour cet ensemble.
Protocole de Diagnostic Atelier
Lire le protocole techniqueTest Débit de Fuite Injecteur Common Rail: Valeurs & Diag
IMA / QR Calibration
Lire le protocole techniqueCodage Injecteur Bosch IMA: Emplacement & 6-9 Chiffres
SOP D
Lire le protocole techniqueExtraction injecteur grippé : SOP atelier et extracteur
PROTOCOLE D
Lire le protocole technique