Causes and Fixes Nissan P1421 Code: Cold Start Control
4:26
YouTubeHVAC Mechanic
Causes and Fixes Nissan P1421 Code: Cold Start Control
How to fix Nissan P1421 Code: Cold Start Control What is Cold Start Control? The Cold Start Emission Reduction is a system is designed to optimize engine performance and reduce emissions during cold starts by managing ignition timing, engine idle speed, fuel delivery, and air-fuel mixture enrichment. The goal is to quickly warm up the engine ...
4.7K views7 months ago
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Nissan code p1421- cold start control malfunction. In this video i cleaned the throttle body as that was causing my fault. There is a tsb from nissan to reflash the ecm. Also can be caused By a vacuum leak and a clogged airfilter/ intake boot. #mechaniclife #nissan #fyp#carsoftiktok #diy
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Nissan code p1421- cold start control malfunction. In this video i cleaned the throttle body as that was causing my fault. There is a tsb from nissan to reflash the ecm. Also can be caused By a vacuum leak and a clogged airfilter/ intake boot. #mechaniclife #nissan #fyp#carsoftiktok #diy
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Nissan code p1421- cold start control malfunction. In this video i cleaned the throttle body as that was causing my fault. There is a tsb from nissan to reflash the ecm. Also can be caused By a vacuum leak and a clogged airfilter/ intake boot. #mechaniclife #nissan #fyp#carsoftiktok #diy
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