Code : P2423
Make : INFINITI
Description : P2423 INFINITI HC Adsorption Catalyst Efficiency Below Threshold Bank 1
Possible causes :
– Hydro Carbon (HC) adsorption catalyst (under floor)
– Exhaust tube
– Intake air leaks
– Faulty Fuel injector
– Fuel injector leaks
– Faulty Spark plug
– Improper ignition timing
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.