P2423 INFINITI - HC Adsorption Catalyst Efficiency Below Threshold Bank 1
P2423 INFINITI 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
First diagnose P2423 INFINITI code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P2423 INFINITI code
Labor: 1.0The cost of diagnosing the P2423 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P2423 INFINITI Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2423 Infiniti DescriptionThe Engine Control Module (ECM) monitors the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal.
The phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal becomes small as the Hydro Carbon (HC) adsorption catalyst (under floor) is deteriorated.
When the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal approaches a specified limit value, the HC adsorption catalyst (under floor) malfunction is diagnosed.
P2423 INFINITI More InformationNeed more information on how to fix the P2423 INFINITI code?
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