GM
12668635
Vezi specificațiile
SolenoidGasoline Direct Injection (GDI)Euro 255
GM 12668635 Injector SIDI Buick Enclave Chevrolet Blazer Cadillac XT6 3.6L V6 LGX
Platformă motor:GM 3.6L High Feature V6 SIDI (LFX / LLT / LGX / LFY) →
COD OE
12668636, 12684125, 12684126, 217-3445, FJ1296SUPAPĂ DE COMANDĂ
-DUZĂ PULVERIZATOR
-PRESIUNE ÎN RAMPĂ
150 barNORMĂ POLUARETier 2 Bin 5 / Euro 5 / LEV II
GARANȚIE12 Luni
02
Compatibilitate vehicule și motoare
03
Specificații tehnice
| Specificație | Valoare |
|---|---|
| Part Number / SKU | 12668635 |
| Manufacturer Brand | GM |
| Component Type | Direct Fuel Injector |
| Engine Application | General Motors 3.6L V6 DOHC 24V SIDI Direct Injection with AFM (LGX / LFY) |
| Presiune de lucruSpecificație de bază | |
| Mounting Torque (Flange / Bracket) | 10 N-m (89 lb-in) |
| Fuel Line / Rail Torque | 25 N-m (18 lb-ft) |
| Coduri de eroare frecvente | P0300, P0301, P0172, P0175 |
04
Instrucțiuni de montaj
- Depressurize Fuel System: Pull fuel pump fuse or disconnect LPFP harness. Crank engine 5-8 seconds until it stalls to drop residual rail pressure below 5 bar.
- Clean Surrounding Cavity: Blow compressed air around cylinder head bore or pump flange cavity to prevent dirt ingress into the fuel rail.
- Lubricate & Fit Seals: Inspect Teflon combustion seals or O-rings. Coat lightly with clean motor oil (do not use grease) to avoid tearing during insertion.
- Torque to Factory Specification: Hand-thread bolts evenly. Tighten mounting fasteners to 10 N-m (89 lb-in), and torque fuel line fittings to 25 N-m (18 lb-ft).
- Prime & Leak Check: Cycle ignition to RUN position 3 times (5 seconds each) to build low-side pressure. Inspect fittings for leaks before starting engine.
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.
DIAGNOZĂ COMMON RAIL DE ATELIER
Citește protocolul tehnicDiagnostic Supapă de Dozaj IMV SCV ZME & Test P0088
PROTOCOL DE DIAGNOSTICARE OBD-II
Citește protocolul tehnicGhid de diagnosticare P0087: Presiune scăzută în rampa comună (Rail)
SOP DIAGNOSTIC ATELIER DIESEL
Citește protocolul tehnicDiagnostic Corecții Injectoare și Echilibrare Cilindri
PROTOCOL DE ASAMBLARE ȘI INSTALARE
Citește protocolul tehnic