16611AA810
DENSO 16611AA810 Högtrycksinjektor Subaru BRZ Toyota GR86 2.4L FA24D D-4S
SU003-08670, 297500-1430Precision High-Speed Solenoid Multi-Hole Nozzle-200 barTekniska specifikationer
| Specifikation | Värde |
|---|---|
| Systemtyp | Denso Multi-Hole Direct Gasoline Fuel Injector |
| ArbetstryckHuvudspec. | |
| Spray Pattern | 6-hole laser-calibrated spray targeted at boxer piston crown bowl |
| Fuel Rail Bolt Torque | 19 N·m (holding bracket flanged bolts) |
| High Pressure Pipe Torque | 32 N·m Flare Nut Connection |
| Coil Resistance | 1.7 - 2.1 Ω at 20°C (High-speed pulse driver circuit) |
| Vanliga felkoder | P0300 (Random Misfire), P0301-P0304 (Cylinder Misfire), P0171 (System Too Lean) |
| Workshop Precaution | Replace Teflon combustion seal ring using cone expansion tool before inserting into boxer cylinder head |
Matchande högtryckspump (Bränslekretsmontering)
Fungerar på samma högtrycks-common-railkrets. Vid lågt railtryck (P0087), kontrollera pumpens flöde innan injektorer byts ut.
Monteringsanvisningar
- [
- {
- "step": 1,
- "title": "Depressurize Direct Injection System & Remove Strut Braces",
- "instruction": "Depressurize direct injection circuit via fuel pump fuse pull and crank engine. Unbolt engine bay cross-strut braces to access boxer cylinder heads."
- },
- {
- "step": 2,
- "title": "Unplug Injector Harness & Disconnect Fuel Rail Lines",
- "instruction": "Disconnect direct injection harness connectors. Loosen steel fuel rail flare nuts (32 N·m) and unbolt fuel rail mounting bolts (19 N·m)."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Install New Teflon Combustion Rings",
- "instruction": "Carefully remove injectors with puller tool. Expand replacement Teflon combustion seals onto nozzle tip and compress with sizing die."
- },
- {
- "step": 4,
- "title": "Seat Injectors, Torque Rail Fasteners & Verify Sealing",
- "instruction": "Push injectors into cylinder head ports. Torque rail bolts to 19 N·m. Tighten steel fuel line flare nut to 32 N·m. Check for fuel leaks on initial startup."
- }
- ]
Felkoder (DTC) och Diagnosprotokoll
Vanliga diagnosfelkoder (DTC) som aktiveras nar denna common rail-injektor uppvisar slitage, kretsfel eller kalibreringsavvikelse:
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.
Tekniska Diagnos- och Serviceprotokoll
Verifierade verkstadsrutiner, testgränsvärden och serviceinstruktioner för denna komponent.