benjaminwalter1
Navara diesel power loss smoke
Summary of the thread
A 2020 Nissan Navara diesel with 234,000 kilometers is experiencing reduced engine power and excessive smoke during acceleration. The suspected cause is a clogged diesel particulate filter (DPF). Suggested solutions include performing a forced regeneration, checking related sensors like the differential pressure and exhaust temperature sensors, and considering DPF cleaning or replacement. Ultimately, a workshop confirmed a defective DPF, leading to its replacement to resolve the issues.
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4 comment(s)
benjaminwalter1 (community.author)
How would I perform a forced regeneration? What sensors should I be looking at specifically? I’m not very technically savvy when it comes to cars, so any guidance would be appreciated. Could a DPF cleaning help instead?
helmutkaiser5
Forced regeneration usually requires diagnostic equipment, so you'd need to take it to a workshop. As for sensors, the ones related to the DPF are key - differential pressure sensor, exhaust temperature sensors. Honestly, with your symptoms, and that mileage, you are likely looking at a defective DPF. A cleaning might help, but replacement is often the only real fix.
benjaminwalter1 (community.author)
I took it to a workshop as you suggested, and they confirmed it was indeed a defective DPF, costing me 1550€ for the replacement. Hopefully, this resolves the issues with the reduced engine power and smoke. Thanks for pointing me in the right direction!
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NISSAN
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NAVARA
helmutkaiser5
Smoke and loss of power sounds like a clogged DPF. Have you tried a forced regeneration? Also, check for any sensor faults, could be a faulty sensor causing the issue.