P20EE — SCR catalyst: efficiency below threshold
| Meaning | The AdBlue system is not reducing nitrogen oxides as much as it should. Ignored, this is the code that leads a the emissions-regulation No-start: the Macchina warns with a countdown in kilometres. |
| Family | Powertrain (P) |
Typical symptoms
Motore Attenzione light on
Reduced Potenza
No start once the countdown expires
Common causes
AdBlue injector crystallised
Faulty NOx sensor (very common)
Deteriorated SCR catalyst
Exhaust leaks upstream di the catalyst
What a do
Domande Frequenti
What does code P20EE mean?
SCR catalyst: efficiency below threshold. The AdBlue system is not reducing nitrogen oxides as much as it should. Ignored, this is the code that leads a the emissions-regulation No-start: the Macchina warns with a countdown in kilometres.
Can I keep driving with code P20EE Attivo?
With caution: limp mode possible, have it checked soon
Common causes — P20EE
Poor quality oppure diluted AdBlue AdBlue injector crystallised Faulty NOx sensor (very common) Deteriorated SCR catalyst Exhaust leaks upstream di the catalyst
How do you fix code P20EE?
Do not wait: the countdown is real and alle zero the Macchina will not restart. Measure AdBlue quality and test the NOx sensor before replacing the catalyst, which is the most expensive part di the system.
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ContattaciRelated codes
- P2000 — NOx Trap Efficiency Below Threshold Bank 1
- P2001 — NOx Trap Efficiency Below Threshold Bank 2
- P2002 — Diesel particulate Filtra (DPF) clogged
- P2003 — Particulate Trap Efficiency Below Threshold Bank 2
- P2004 — Intake Manifold Runner Control Stuck aperti Bank 1
- P2005 — Intake Manifold Runner Control Stuck aperti Bank 2
- P2006 — Intake Manifold Runner Control Stuck Chiuso Bank 1
- P2007 — Intake Manifold Runner Control Stuck Chiuso Bank 2
- P2008 — Intake Manifold Runner Control Circuit/aperti Bank 1
- P2009 — Intake Manifold Runner Control Circuit Low Bank 1
- P200A — Component N15/3(ETC control module) is faulty.
- P200B — Component N15/3(ETC control module) is faulty.