Po420 nissan sentra

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I've had this light on and off for the past 4 months or so. I've done some reading on this code, and it sounds like it could be the catalytic converter.

Po420 nissan sentra

Hello, I need some advice for an issue I have been dealing with for the past year with my nissan sentra. I got it scanned the code P was retrieved. I replaced the MAF sensor with hitachi brand however the light came back on I thought maybe I purchased a faulty one so I went and got it replaced with a new hitachi MAF sensor but the light still came on after a few hours. The next morning my check engine light came back on and I took it back to the dealership. Many times my car would stall and I would have to press the gas enable for the engine to stay on. I took my car to different mechanics and I have been led in circles. Starter was good brand and new battery so those are canceled out. One day after work, I got into my car and started my engine however the car would not move after switching the gear to drive. It just made a loud noise from the exhaust when I pressed the gas. I eventually got the car started and I went directly to a mechanic. He insisted it was the throttle body and sent me a link to purchase a original nissan throttle body part online that was cheaper.

Are you a Nissan Expert? It doesn't matter thet it failed. If the Catalyst has failed, be sure to check for any software updates for the power-train computer.

Always go with front 02 sensor first Only front 02 sensor first. Use a good quality one. Napa is often the best source. Do not use a generic one. It must plug right in

P is usually related to the catalytic converter and other more serious repairs. For this reason, we recommend not driving your car until the P code is resolved. Some related repairs can be done DIY but the more serious repairs listed below should be done by a mechanic. Advertiser Disclosure. P means the catalytic converter is not efficiently removing pollutants from the exhaust. Read more about how catalytic converter problems can hurt your engine here. Yes, it is usually alright to continue driving in the short term with P It does not pose a risk to the driver.

Po420 nissan sentra

P is a well-recognized error code within the automotive industry, notorious for its persistence. Luckily, this article is designed to guide you through understanding the implications of this error code, exploring its possible causes, and navigating potential fixes. Drawing on our experience, we acknowledge that resolving P can be challenging without appropriate knowledge. This complexity arises as the error can take a significant amount of time to reappear, even after parts replacement and code resetting. Throughout this blog post, we will address these issues and more, providing you with comprehensive insight into the P code.

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It appears that either 1 or both of the O2 sensors are bad or the catalytic convertor is bad. JavaScript is disabled. They said there were no electrical issues or vacuum leaks in the system. Hello, I need some advice for an issue I have been dealing with for the past year with my nissan sentra. Your data is anecdotal, and therefore not statistically valid. Wasn't the second sensor I'm pretty sure. AVS Forum. He insisted it was the throttle body and sent me a link to purchase a original nissan throttle body part online that was cheaper. This is an older thread, you may not receive a response, and could be reviving an old thread. Part circled in green. Check the catalytic converter, replace if necessary. Recommended Communities. It is a stainless steel container with an inlet and outlet pipe that looks similar to a muffler. I've had this light on and off for the past 4 months or so.

If you own a Nissan Sentra and your diagnostic tool flashes the P code, it indicates a problem with the catalyst system efficiency below the threshold for Bank 1. This can be concerning, but with the right approach, you can diagnose and fix the issue.

Midnight V 5 Replies. Three way catalyst manifold Exhaust tube Intake air leaks Fuel injector Fuel injector leaks Spark plug Improper ignition timing. Not sure if it was the cause of anything I also filled up the tank with 93 octane gas , but it seem strange coincidence that down the road a bit the SES light came on steady. This is an important concept because if the front Oxygen sensor is slow and barely passes its monitor tests, it can fool the computer into thinking that the Catalyst has failed because the computer just watches how closely the switching speed of the front Oxygen sensor compares to the switching speed of the rear Monitoring Oxygen sensor. Nissan Z Forum. Has anyone had to replace O2 sensors and which one is more probable. This is similar to a drive cycle. Repair as required. That is a BIG hint. Sort by Oldest first Oldest first Newest first Most reactions. Deals Forum. Reconnect all fuel injector harness connectors disconnected. Is there a specific test that I need to run? You see how that has not worked! AVS Forum.