P2002 on Peugeot
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
P2002 on Peugeot vehicles indicates diesel particulate filter efficiency below threshold (bank 1). Au7o has documented this code across 6 Peugeot models — most commonly on 208, 3008, 308. 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. Typical repair costs on Peugeot range from $200 to $2,500, depending on the specific model and root cause.
Common Causes of P2002
- •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
P2002 on Peugeot by Model
Peugeot 208(1 issue)
- Diesel Particulate Filter Blockage2012-2026
Diesel 208 models suffer from premature DPF blockage, particularly in vehicles used predominantly for short urban journeys. The DPF cannot complete its regeneration cycle during short trips, leading to progressive soot buildup.
Peugeot 3008(1 issue)
- DPF Premature Blockage2009-2026
The 3008 diesel variants experience premature DPF clogging, with the larger vehicle weight and urban usage patterns contributing to incomplete regeneration cycles. The issue is more pronounced in pre-2017 models with the older DPF design.
Peugeot 308(1 issue)
- DPF Regeneration Failure2007-2026
The 308 diesel models experience frequent DPF regeneration failures, especially in stop-start urban driving conditions. The additive-based DPF system requires periodic Eolys fluid refills that are often overlooked during servicing.
Peugeot 5008(1 issue)
- DPF Blockage2009-2026
The 5008 diesel shares the PSA DPF issues common across the range, with the heavier seven-seat body exacerbating regeneration difficulties. School-run and city driving patterns are the primary triggers for premature blockage.
Peugeot 508(1 issue)
- Diesel DPF Regeneration Issues2011-2026
The 508 diesel suffers from DPF regeneration failures, particularly on first-generation models with the additive DPF system. Frequent short journeys prevent the regeneration cycle from completing, leading to progressive soot buildup.
Peugeot Partner/Rifter(1 issue)
- DPF Blockage in Commercial Use2008-2026
Partner and Rifter vans used for urban delivery work are extremely susceptible to DPF blockage due to the constant stop-start nature of commercial use. The duty cycle rarely allows for passive regeneration.
Looking for P2002 on a different make?
View P2002 across all makes →Frequently Asked Questions
What does P2002 mean on Peugeot?▼
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 Peugeot specifically, this code is documented across 6 models.
What causes P2002 on Peugeot vehicles?▼
Common causes on Peugeot: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2002 on a Peugeot?▼
Repair costs on Peugeot range from $200 to $2,500, depending on the specific model and root cause.
Which Peugeot models have P2002 documented?▼
Au7o has documented P2002 on 6 Peugeot models: 208, 3008, 308, 5008, 508, Partner/Rifter.