P20EE
SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 1
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$167–556 (est.)
Symptoms
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Unpleasant exhaust smell
- Increased NOx emissions
Causes
- Contaminated or damaged SCR catalyst
- Low level or poor quality of reagent (AdBlue)
- NOx sensor malfunction
- Problems with the reagent injection system
- Engine control unit malfunction
How to Fix
- Check the level and quality of the reagent (AdBlue)
- Check the condition of the SCR catalyst for contamination or damage
- Check the operation of NOx sensors and their wiring
- Check the reagent injection system for leaks or blockages
- If necessary, replace the SCR catalyst or NOx sensors
Related codes
Error P20EE by Vehicle Brand
AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye