0445120243

The 0445120243 with OE reference 23670-E0490 fits HINO trucks and buses with J05E (4.0-5.1L I4/I6, 120-210 hp) and J08E (7.7L I6, 210-260 hp) engines. Confirmed applications: HINO 300 Series 116-186 (J05E-TP, 2011+), HINO Dutro (J05E-NTP, 2011-2019), HINO 500/600 Series (J05E/J08E, 2012+), Toyota Coaster Bus (J05E retrofit, 2012+), and HINO 238/258/268/338 (J08E-VC/TC, 2010+). Always verify the OE number on your existing injector matches 23670-E0490 before ordering.

Common symptoms on HINO J05E engines include rough idle, loss of power, hard starting, black smoke, and check engine light. OBD2 typically shows P0201-P0208 (injector circuit open/malfunction) or P062D (fuel injector driver circuit performance - specific to the F00RJ02397 solenoid driver circuit). A 2012-2021 HINO 155 with J05E-TP: P0201 almost always points to a failed #1 fuel injector or wiring harness fault. Diagnose with an OBD2 scan, then measure the F00RJ02397 solenoid resistance (0.4-0.8 ohms) and check the injector connector for corrosion or broken wires.

The ECU sets P0201-P0208 when the injector control circuit current falls outside the calibrated threshold for that cylinder. The F00RJ02397 solenoid draws a specific current signature; if resistance drifts (e.g. from water contamination or thermal fatigue), the ECU detects the anomaly and illuminates the MIL. P062D specifically indicates the piezo/solenoid driver circuit performance fault - on the J05E, this is the ECU's integrated driver stage for the F00RJ02397 solenoid. Root causes include: internal solenoid short/open, connector corrosion, or wiring harness chafe.

The 0445120243 uses the BOSCH F00RJ02397 solenoid control valve. To identify: remove the injector connector cap - the valve code F00RJ02397 is stamped on the valve sub-assembly near the electrical connector. Do not confuse with the wiring harness code F00RJ02825 (the harness plug, not the valve). If the valve code does not read F00RJ02397, the injector is not a 0445120243.

0445120243 and 0445120095 share the same F00RJ02397 control valve group. However, they are NOT interchangeable - each carries a unique IMA (Individual Metering Adjustment) calibration code stamped on the injector body, programmed into the ECU during production. Installing the wrong IMA code causes cylinder imbalance, rough running, and DTC P0300-P0306. Always match both the SKU and the IMA code from the vehicle build plate.

Tools required: OBD2 scanner, 17 mm flare nut wrench (HP fuel line rail side), 12 mm flare nut wrench (injector side), torque wrench (range 5-50 N·m), injector puller, reamer for injector bore cleaning, and new copper washers + O-rings. Torque specs for HINO J05E/J08E: hold-down bolt 25-30 N·m; HP fuel line banjo nut (rail side) 25-30 N·m. After installation, mandatory IMA coding via HINO OEM diagnostic tool - navigate to injector calibration, enter the new injector's QR/IMA code from the label, clear DTCs, and road-test.

Yes - after installing the 0445120243 on any HINO J05E or J08E vehicle, the ECU must be updated with the new injector's IMA/QR calibration code via HINO OEM diagnostic software (e.g. HINO DAS or equivalent). Each injector is individually calibrated at the factory; the ECU uses this code to adjust fuel delivery per cylinder. Without coding: rough idle, power loss, and DTC P0300-P0306 (misfire) or P062D (driver circuit fault). The old code from the failed injector must be cleared before the new code is written.

Standard aftermarket warranty is 12 months from invoice date. DOA (dead on arrival) units are typically accepted within 7-14 days if uninstalled and in original packaging. Returns require proof of purchase. Exclusions: damage from improper installation (wrong torque, reused seals, contaminated fuel), water damage, or modification. A core charge refund applies if the old injector is returned. Before filing a warranty claim, verify the fault is the injector itself - not the wiring harness, ECU driver, or fuel pressure regulator - to avoid unnecessary downtime.

The most common mistake is confusing the 0445120243 (F00RJ02397 valve, HINO J05E/J08E, Euro 5, OE 23670-E0490) with sister injectors in the same HINO family. For example: 0445120095 uses the same F00RJ02397 valve but has a different IMA calibration and may not match your vehicle's build plate code. Also, some HINO J05E applications use Denso injectors (095000-xxxx series) - visually similar but not interchangeable. Verify: (1) OE number on old injector = 23670-E0490, (2) engine code = J05E-TP or J08E-TC, (3) emission standard = Euro 5, (4) valve code = F00RJ02397. If any of these don't match, request dealer confirmation before ordering.