II-16600-1BY0A (DPF Fuel Additive Injector)
Function: CLEANING
This is the "INIETTORE CARBURANTE SCARICO" (fuel injector) or "WTRYSK DOPALACZ DPF" (DPF fuel additive injector) AutoricambiserviceInfinitipartsnet
What it does: Injects additional fuel into the exhaust stream during DPF regeneration
Purpose: The extra fuel burns at high temperature to incinerate the soot trapped in the DPF filter
When it works: During active regeneration cycles (usually every 300-500km of driving)
NI-B08D2-1BY1A (DPF System Sensor)
Function: DETECTION & AUTO-CLEANING CONTROL
This appears to be a NOx sensor or DPF differential pressure sensor
What it does:
Monitors soot levels in the DPF
Detects when regeneration is needed
Tells the ECU when to trigger auto-cleaning
Monitors the effectiveness of the cleaning process
How the System Works Together:
Detection Phase: The sensor (B08D2-1BY1A) continuously monitors DPF soot levels
Trigger Phase: When soot reaches a certain level, the sensor tells the ECU to start regeneration
Cleaning Phase: The ECU activates the fuel injector (16600-1BY0A) to inject extra fuel
Burn-off Phase: The extra fuel creates high exhaust temperatures (600°C+) that burn off the trapped soot
Completion Phase: The sensor confirms the cleaning was successful
Why Your Car is in Limp Mode:
Most likely scenarios:
Faulty fuel injector (16600-1BY0A): Can't inject fuel for regeneration → soot accumulates → DPF blocks completely
Faulty sensor (B08D2-1BY1A): Can't detect soot levels or trigger regeneration → system thinks DPF is failed
Both components failing: Complete system breakdown
The ECU enters limp mode because "this is not to protect expensive components but is purely to prevent excessive amounts of NOx from being released into the atmosphere when the SCR system does not work as intended"
| Admin reply: | Sydney-Specific Services Several specialized DPF cleaning services operate in Sydney, including:
DPF Cleaning Services (Wetherill Park) Sydney Diesel Centre David's Auto Repair (Wetherill Park) DPF HQ (offers 24-hour service) Western Filters (serves Sydney area) A1 DPF Cleaning2025-07-16 14:05:26 |