HONDA · 2024-03-05
Service Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC P2DE1 rich criteria.
P2DE1 · Manufacturer communications
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P2DE1 ← What does this code mean?3 Results
HONDA · 2023-12-08
Service Bulletin - During engine start in cold conditions, it is possible for air-fuel ratio to exceed DTC P2DE1 rich criteria.
HONDA · 2022-06-07
"Service bulletin - The MIL comes on with DTC P2DE1 (Cold Start Air Fuel Ratio Control System Rich). A new cold start emission reduction strategy was applied to detect air fuel ratio abnormalities. When certain fuel and vehicle shutoff conditions are present, the LAF sensor may incorrectly judge the air fuel ratio to be rich."