Engine-Codes -
Nissan -
P1421 2006 NISSAN ALTIMA SEDAN
P1421 2006 NISSAN ALTIMA SEDAN - Cold Start Control
Table of contents
P1421 2006 NISSAN ALTIMA SEDAN 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)
How is the P1421 2006 NISSAN ALTIMA SEDAN code repair?
Start by checking 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 connector's pins.What is the cost to diagnose the P1421 2006 NISSAN ALTIMA SEDAN code
Labor: 1.0
The cost to diagnose the P1421 2006 NISSAN ALTIMA SEDAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the 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.Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1421 2006 NISSAN ALTIMA SEDAN Meaning
The 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.More Information
Need more information on how to fix the P1421 2006 NISSAN ALTIMA SEDAN code?Get Access to Factory Service Manuals