MasterTuning Fault code dictionary (DTC)

P2423 — HC Adsorption Catalyst Efficiency Below Threshold Bank 1

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningHC Adsorption Catalyst Efficiency Below Threshold Bank 1.
FamilyPowertrain (P)

Frequently asked questions

What does code P2423 mean?

HC Adsorption Catalyst Efficiency Below Threshold Bank 1. HC Adsorption Catalyst Efficiency Below Threshold Bank 1.

Can I keep driving with code P2423 active?

With caution: limp mode possible, have it checked soon

How do you fix code P2423?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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Where to get it fixed

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