DENSO
16611-AA720
Vezi specificațiile
SolenoidSubaru Multi-Point Turbo Electronic Fuel Injection (MPI 43.5-psi High-Flow System)Euro 2545
DENSO 16611-AA720 Injector Benzină 565cc Subaru WRX STI 2.5L EJ257
COD OE
16611-AA72A, FJ942, 195500-4430SUPAPĂ DE COMANDĂ
12-Hole High-Flow Micro-Atomization DirectorDUZĂ PULVERIZATOR
-PRESIUNE ÎN RAMPĂ
3.0 barNORMĂ POLUARETier 2 Bin 5 / Euro 4 / Euro 5 / LEV II
GARANȚIE12 Luni
02
Compatibilitate vehicule și motoare
| Vehicul | Motor | Ani fabricație |
|---|---|---|
| Subaru WRX STI GRB/GVB/VAB | Subaru Boxer 2.5L Turbo DOHC 16-Valve Horizontal-Opposed 4-Cylinder (EJ257, EJ255) | 2007-2021 |
| Subaru Impreza WRX / Forester XT | Subaru Boxer 2.5L Turbo DOHC 16-Valve Horizontal-Opposed 4-Cylinder (EJ257, EJ255) | 2008-2014 |
| Subaru Legacy GT / Outback XT | Subaru Boxer 2.5L Turbo DOHC 16-Valve Horizontal-Opposed 4-Cylinder (EJ257, EJ255) | 2008-2012 |
03
Specificații tehnice
| Specificație | Valoare |
|---|---|
| Tip sistem | Subaru High-Flow Multi-Point Turbo Electronic Fuel Injection |
| Operating Fuel Pressure | 3.0 bar (43.5 psi / 300 kPa nominal regulated differential pressure) |
| Static Fuel Flow Rate | 565 cc/min @ 3.0 bar (53.8 lb/hr) genuine blue injector body |
| Coil Resistance | 11.5 - 12.5 Ohms @ 20°C (High-Impedance Saturated Solenoid) |
| Spray Geometry | 12-Hole High-Flow Dual-Cone Atomization Director |
| Fuel Rail Securing Fasteners Torque | 19 N·m (14 lb-ft) fuel rail mounting bolts |
| Fuel Rail Protector Shield Bolts | 7.5 N·m (66 in-lb) sheet metal safety shields |
| Seals Architecture | Upper Viton Fluorocarbon O-Ring & Lower Intake Manifold Seal Ring |
| Manufacturer | Denso Corporation (Tier-1 OEM for Subaru Corporation) |
| Denso Production Reference | 195500-4430 / 16611-AA720 |
| Presiune de lucruSpecificație de bază |
04
Instrucțiuni de montaj
Sfaturi și avertismente:
- Mandatory lower seal ring renewal: Never reuse hardened lower manifold rubber seal rings; boost pressure from the turbo will blow past compromised lower seals, causing unmetered boost leaks and violent lean backfires.
- Prevent cylinder 4 fueling starvation: Cylinder #4 runs hottest on EJ257 engines; ensure injector filter screens are immaculately clean or flow-matched to prevent lean detonation and catastrophic ringland failure.
- Never use petroleum jelly or silicone spray: Lubricate O-rings strictly with clean engine oil or clean assembly lubricant to protect O-ring integrity and lambda sensors.
- Double-check fuel rail safety shields: Reinstall all stamped steel safety shields securely; they protect pressurized fuel rails during side impacts.
05
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:
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.
PROTOCOALE DE ATELIER
Protocoale Tehnice de Diagnosticare & Service
Proceduri verificate de atelier, praguri de testare și standarde de intervenție pentru acest ansamblu.
Protocol de Diagnoză în Atelier
Citește protocolul tehnicTestul Debitului de Retur la Injectoare: Valori și Diagnoză
SOP ATELIER DIESEL COMMON RAIL
Citește protocolul tehnicExtragere Injectoare Blocate & Decalaminare | FuelPartsDB
PROTOCOL DE ASAMBLARE ȘI INSTALARE
Citește protocolul tehnic