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. Went to Autozone and the obd scanner said: Catalyst efficiency low-bank 1.

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. I purchased the part and he installed it and reprogramed the throttle body and cleared the codes.

Repair as required. There is a warranty period for converters maybe up to 10 years.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Can anyone confirm this? I've done a quick search but found nothing.

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. This guide will walk you through understanding and addressing the P error code in your Nissan Sentra. It signifies that the vehicle's computer has detected the catalytic converter is not operating as efficiently as it should be, compared to the factory specifications. This inefficiency can affect the vehicle's fuel economy and emissions output. Shop Car Ignition Switch Now. To accurately diagnose the cause of a P code in your Nissan Sentra, follow these steps:. Shop Car Code Reader Now.

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.

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I think the difference is the upper and lower oil pan is a little smaller for the Sentra. Your data is anecdotal, and therefore not statistically valid. When the engine is warmed up and running normally the upstream oxygen sensor reading fluctuates and the downstream one is fairly steady. Cheap temporary fix for the Cat giving a P has been to standoff the post cat O2 sensor with a spacer, lots of info out there on this. Swap the spark plug with a different cylinder. Any suggestions would be greatly appreciated. It does this by storing and releasing the oxygen that gets released from the reduction of NOx in the previous reduction bed. Three way catalyst manifold does not have enough oxygen storage capacity. I am not sure about how emissions tests work, but I needed to get an inspection to get my plates here in TX, and so I had the codes cleared. What is wrong when this code shows up p shows up.. Best of luck. Is that capped by mileage? Also, you mention a 10 year warranty on the cat converters.

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.

When the gap is less than 13 mm 0. A three way catalyst manifold with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. The downstream O2 sensor reading should be fairly steady. A shop can do this for you or with a live data scan tool and some engine knowledge you can do it yourself. Insert Quotes Quotes Post Reply. I did do a search, and I the results do not agree with your proposition. View all Fixya Reports. Repair as required. My question 1st question is for the P should I just dump out the cat until I can get an aftermarket exhaust manifold or is there something I should try before that? Upload Upload an image from your computer. Sign up. Probable causes are listed as follows: 1-air leak in exhaust before rear 02 sensor, 3-Fuel system fault, 4-faulty catalytic converter. Insert Quotes Quotes Post Reply.