12658481
HITACHI 12658481 Direktspridare GM Malibu Equinox Regal Envision ATS CTS 2.0L Turbo LTG
12643171, 12634125, 217-3443, FJ1157, FIJ0041--150 barPassande fordon & motorer
| Fordon | Motor | Årsmodell |
|---|---|---|
| Cadillac ATS / ATS-L 2.0T | GM 2.0L Ecotec Turbo SIDI (LTG / LSY Tripower / LHU) | 2013-2019 |
| Buick Regal GS / Regal 2.0T | GM 2.0L Ecotec Turbo SIDI (LTG / LSY Tripower / LHU) | 2014-2020 |
| Buick Envision 28T AWD | GM 2.0L Ecotec Turbo SIDI (LTG / LSY Tripower / LHU) | 2015-2020 |
| Chevrolet Camaro 2.0T | GM 2.0L Ecotec Turbo SIDI (LTG / LSY Tripower / LHU) | 2016-2020 |
Tekniska specifikationer
| Specifikation | Värde |
|---|---|
| SKU-nummer | 12658481 |
| Fabrikat / Märke | HITACHI |
| manufacturer_code | 12658481 |
| pressure_rating | 150 bar (2175 psi) |
| torque_flange | 10 N-m (89 lb-in) |
| torque_line | 30 N-m (22 lb-ft) |
| engine_family | GM 2.0L Turbocharged Ecotec Gen3 DOHC SIDI (LTG) |
| ArbetstryckHuvudspec. |
Matchande högtryckspump (Bränslekretsmontering)
Fungerar på samma högtrycks-common-railkrets. Vid lågt railtryck (P0087), kontrollera pumpens flöde innan injektorer byts ut.
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.