P2002 on Hyundai: How to Diagnose & Fix
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
1 Hyundai model · 1 documented issue · $50-$950 repair
P2002 on Hyundai by model: symptoms, diagnosis and fix
BS6-compliant 1.5L CRDi diesel Cretas (2020 onward) use a DPF without an active heater element, so the filter relies on sustained highway-speed driving to regenerate. Owners whose use is dominated by short, low-speed city trips report soot accumulation that triggers DPF and check-engine warnings, reduced power, and in severe cases a fully clogged filter — one documented case needed a DPF replacement at just 3,500 km. If ignored, the engine enters limp mode and the filter may require replacement costing roughly INR 70,000-80,000 outside warranty.
Common Symptoms
- DPF warning light on the instrument cluster
- Check engine light after repeated short city trips
- Noticeable loss of power / limp mode
- Increased fuel consumption during regeneration attempts
- Slight diesel smell or elevated idle during active regeneration
How to Fix
Drive at sustained speeds above ~60 km/h for 20-30 minutes regularly so passive/active regeneration can complete; if the warning appears, a dealer can perform a forced regeneration. A fully clogged filter must be professionally cleaned or replaced (covered under warranty in documented cases).
Sources for this issue (4)
- Hyundai Creta 1.5L Diesel BS6 | 4 encounters & issues with the DPF - Team-BHPforum
- Clogged DPF on my 3500 km run Creta diesel: Replaced in warranty | Team-BHParticle
- My Hyundai Creta diesel: 4 encounters with DPF issues & my learnings | Team-BHParticle
- Used Hyundai Creta: Top Hidden Costs | Cars24article
P2002 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2002 mean on a Hyundai?
P2002 stands for "Diesel Particulate Filter Efficiency Below Threshold (Bank 1)." P2002 indicates that the diesel particulate filter (DPF) on bank 1 is performing below its required efficiency threshold. The DPF captures and stores soot from diesel exhaust and periodically burns it off (regeneration); the engine computer monitors exhaust pressure across the filter and other data to judge how well it's trapping and clearing soot. When that efficiency falls too low, this code sets. Symptoms can include reduced power, a clogged-filter warning, frequent or failed regenerations, and increased emissions. On Hyundai it is documented across 1 model: Creta.
What are the most common causes of P2002?
The most common causes of P2002 are: Clogged or damaged diesel particulate filter, Failed or incomplete DPF regeneration (mostly short trips), Faulty differential (DPF) pressure sensor or hoses, Faulty exhaust temperature sensor(s), Exhaust leak before or across the DPF, Engine running issues causing excess soot (injectors, EGR, turbo), Use of incorrect (non-low-ash) engine oil or fuel quality issues. The specific cause varies by vehicle.
How much does it cost to fix P2002 on a Hyundai?
Published repair estimates on Hyundai range from $50 to $950 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.