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Yes, this combination strongly suggests Cylinder 3 injector failure. Before replacing, perform these checks: (1) Resistance test — disconnect the #3 connector, measure across the two terminals. Expected: 10.8–13.2 ohms. Open circuit confirms coil failure. (2) Noid light test — connect a noid light to the #3 harness, crank the engine. No pulse means upstream issue (wiring or ECU driver). (3) Mode $06 data — check misfire counts at idle vs. 2500 RPM. If #3 misfire counts drop significantly at higher RPM but persist at idle, suspect a partially clogged 4-hole nozzle. If resistance is out of spec, replace the full 6-piece 04861238AC set to maintain bank-balanced fuel delivery.

Three predictable failure modes appear on the 2005–2008 fleet entering 2026: (1) Hot-soak misfire — smooth cold, stumbles after 15+ minutes due to coil micro-cracks above 13.2 ohms. (2) Cold-start flooding — leaking pintle seat drips residual fuel into the intake port, causing extended crank and raw fuel smell. (3) Ethanol-induced corrosion — E10–E15 exposure accelerates filter-basket corrosion, causing lean fuel-trim codes under load.

Replace all six. The 3.8L V6 (EGH) uses a batch-fire injection strategy on the Chrysler NGC controller, applying a single bank-level fuel trim across three injectors per bank. If one new injector flows at 241.5 cc/min while the other five are degraded to 225–230 cc/min after 150,000 miles, the ECU will lean-trim the entire bank to compensate, running the aged injectors dangerously lean. Install the complete 6PCS 04861238AC set from KOEEP and perform an ECU fuel trim reset (battery disconnect for 15 minutes or scan-tool commanded reset).

Yes. The 04861238AC is a legacy saturated-circuit injector driven by the NGC ECU, which communicates via ISO 9141-2 (K-Line) and ISO 15765-4 (CAN) on 2005–2008 applications. When a 2026 UDS-capable scan tool queries DTCs via Service $19 (ReadDTCInformation), the ECU returns standard P-code format regardless of the diagnostic protocol layer. All injector-circuit DTCs (P0201–P0206) and misfire codes (P0301–P0306) are accessible through any 2026-compliant OBD-II interface. Note that on 2005–2007 model years, the primary diagnostic protocol may be ISO 9141-2 rather than CAN — confirm pin 7 (K-Line) connectivity if CAN communication fails.

The primary Siemens PN is 04861238AC. Cross-references include Chrysler RL861238AC, plus aftermarket codes FJ478, 812-11134, and 4G1140. All six codes are functionally interchangeable on the 3.8L EGH engine. If you have any of these numbers on your existing injectors, the KOEEP 6-piece set is the correct replacement. For 2005–2007 model years, always verify the NGC controller compatibility before ordering — production-date splits in mid-2004 may require specific injector flow-rate variants.

Yes. Each set is manufactured to consistent OEM tolerances, with dynamic flow verified within ±3% across all six units. For critical applications (high-mileage race or fleet duty), you can re-verify with a flow bench, but the factory match is sufficient for typical 3.8L service work. The Chrysler NGC ECU's bank-level fuel trim can correct for small flow mismatches, but the ±3% factory match removes the need for any external compensation.

No — the 04861238AC is specific to Chrysler / Dodge 3.8L EGH applications. The 12-ohm saturated-circuit EV6 injector architecture shares diagnostic and flow characteristics with the Bosch EV6 injectors used on 1999–2006 GM 3.8L Series II / III V6 (L36 / L67) and Ford 3.8L / 4.2L Essex V6, but the connector pinout, flow rate, and electrical calibration are different. For Ford or GM 3.8L applications, use a different cross-reference set. Email support@koeep.com with your VIN for cross-platform fitment verification.