P1421 2009 NISSAN SENTRA - Cold Start Control
P1421 2009 NISSAN SENTRA Possible Causes
- Lack of intake air volume (block air filter)
- Fuel injection system (Clogged fuel injector or bad fuel pump)
- Faulty Engine Control Module (ECM)
First diagnose P1421 2009 NISSAN SENTRA 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 P1421 2009 NISSAN SENTRA code
Labor: 1.0The cost of diagnosing the P1421 2009 NISSAN SENTRA 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.
When is the P1421 2009 NISSAN SENTRA code detected?The P1421 code is detected when The Engine Control Module (ECM) does not control ignition timing and engine idle speed properly when engine is started with pre-warming up condition.
P1421 2009 NISSAN SENTRA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1421 2009 Nissan Sentra DescriptionThe Engine Control Module (ECM) controls ignition timing and engine idle speed when the engine is started with pre-warming up condition. This control promotes the activation of three-way catalyst by heating the catalyst and reduces emissions.
P1421 2009 NISSAN SENTRA More InformationNeed more information on how to fix the P1421 2009 NISSAN SENTRA code?
Get Access to Factory Service Manuals
Need more help?Get the P1421 2009 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area
P1421 2009 NISSAN SENTRA CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P1421 2009 Nissan Sentra code? Have you replaced any parts?
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