A quick list of pre-checks for DPF Removal maps, the more information you can give on the remap upload box to qfiles, all the better.
1. Is the job for your client or a third party?
YES/NO (data collection)
2. Has the Diesel Particulate Filter has been removed from the exhaust system:
YES/NO/HOLE DRILLED THROUGH/ UNKNOWN
3. Check on www.qfiles.co.uk if engine and ecu type is supported for DPF Removal
4. Visual record of the current state of Engine ECU via dashboard display:
Dashboard DPF/FAP symbol on: YES/NO/FLASHING/UNKNOWN/OTHER
Dashboard Glow Plug symbol on: YES/NO/FLASHING/UNKNOWN/OTHER
Dashboard Service symbol on: YES/NO/FLASHING/UNKNOWN/OTHER
Dashboard EML/CEL displayed: YES/NO/FLASHING/UNKNOWN/OTHER
Centre Console Warning Messages: YES/NO/UNKNOWN/OTHER
5. Diagnostic tool stored and pending MIL error messages
Code Description
P1400 DPFE circuit Low input
P1401 DPFE circuit High input
P1405 DPFE sensor upstream Hose off or plugged
P1429 Diesel Particulate Filter Pressure
P1435 DPF Re-generation (CRNT)
P1436 DPF Re-generation (CRNT)
P1471 Diesel Particulate Filter (Bank 1) Regeneration not completed
P1901 Particulate filter pressure sensor error
P2002 Particle Filter Bank 1: Malfunction
P2003 Particulate Trap Efficiency Below Threshold
P242F Diesel Particular Filter Restriction
P244A Particulate Filter Differential pressure too low
P244B Particulate Filter Differential pressure too high
P2452 Particulate Matter Trap Differential Pressure Sensor Circuit
P2453 Diesel Particle Filter Differential Pressure Sensor: Implausible Signal
P2454 Diesel Particulate Filter Differential pressure sensor voltage too low
P2455 Diesel Particulate Filter Differential pressure sensor malfunction
P2458 Particulate Filter regeneration maximum regeneration time exceeded
P2459 Particulate Filter regeneration, regeneration frequency implausible
P2463 Diesel Particle Filter: Excessive Soot Accumulation
P2585 Fuel additive tank low - Not Engine ECU related
6. Diagnostic tool Live data : Are these sensors moving with engine load or they showing fixed possibly faulty values
Pre DPF temperature Sensor: APPEARS WORKING / APPEARS BROKEN / UNKNOWN
Post DPF temperature Sensor: APPEARS WORKING / APPEARS BROKEN / UNKNOWN
Pre DPF Pressure Sensor: APPEARS WORKING / APPEARS BROKEN / UNKNOWN
Post DPF Pressure Sensor: APPEARS WORKING / APPEARS BROKEN / UNKNOWN
7. Diagnostic tool stored DPF fullness value : -50 to +200 % scroll box / TOOL UNABLE TO ACCESS DPF DATA/ UNKNOWN
8. Has forced regeneration, either static or dynamic been conducted:
YES/NO/TOOL UNABLE TO ACCESS DPF DATA/TOOL UNABLE TO COMPLETE PROCESS/ UNKNOWN
9. Have you resets to MIL codes/DPF ash counter/ DPF oil level been conducted:
YES/NO/TOOL UNABLE TO ACCESS DPF DATA/TOOL UNABLE TO COMPLETE PROCESS/ UNKNOWN
10. Check the operation of Injectors and EGR system as they are directly linked to DPF failure by ether over loading the DPF or in the case of the EGR not achieving correct operating temperature - DPF delete will not fix a failed injector or EGR system. Failure to carry out good diagnostic practice will result in additional credit charges.
YES/NO/TOOL UNABLE TO ACCESS DATA/ UNKNOWN
11. ECU READ ready to upload to www.qfiles.co.uk
12. Obtain DPF delete file.
13. Remove DPF element in accordance with good practice - DO NOT cut out DPF element in proximity to sensors, remove sensors to ensure metal particles do not enter.
14. Check codes are clear and status unchanged - DO NOT RUN VEHICLE
15. Flash ECU.