All equipped with 1.4L engine. I just had my catalytic converter (front one) and both O2 sensors replaced in my car last week. There aren’t usually any drivability issues associated with P0420. 2011 Chevy Cruze 1.4 L turbo 160,000 miles (80-90% highway) Uses maybe 8 oz of oil over 6-7k OCI Water pump replaced at 40k & 60k Ignition coil replaced ~10k Turbo oil feed pipe replaced ~120k Thanks in … Chevrolet codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0174, and P0171 can give false data readings that create conditions which trigger code P0420.
The problem is caused by unmetered air entering the engine through the PCV system. There aren’t usually any drivability issues associated with P0430. 2011 Chevy Cruze 1.4 L turbo 160,000 miles (80-90% highway) Uses maybe 8 oz of oil over 6-7k OCI Water pump replaced at 40k & 60k Ignition coil replaced ~10k Turbo oil feed pipe replaced ~120k Thanks in advance. NJ. 1 Affected Product Vehicle MAKE MODEL YEAR CHEVROLET CRUZE 2013 Bulletin No. This page is meant to help you troubleshoot the Chevy Sonic P0420 trouble code. After the tests you may indeed discover that the catalytic converter is bad. Community Repair Questions. Also you hear it almost like misfiring every 30 seconds, it its more of a tick, an... 99 cobra.....P0420 code See Also: P0420 Chevy Cruze . 2011 Chevy Cruze LT. Is there anything else I could be missing here because everything I've looked up- this code relates to replacing the cat and O2 sensors. L. Joined: Mar 2014. Do not overlook other codes that are paired along with P0420. The catalyst within the converter promotes a chemical reaction which oxidizes the HC and CO present in the exhaust gas. P0420 After Cat Replaced.

P0420 CHEVROLET Meaning In order to maintain a reasonably low emissions of Hydrocarbons (HC), Carbon Monoxide (CO), and Oxides of Nitrogen (NOx), the engine controls system uses a three-way catalytic converter. The scan tool P0420 - Catalyst System Low Efficiency. TECH-ASSIST01/03/2018 | 07:28:10. What is code P0420 Catalyst System Efficiency Below Threshold When attach a trouble code reader and come up with a P0420, your first assumption may be that you need a new catalytic converter, simply because the words catalytic converter are mentioned in the code. Chevrolet Code P0420 Common Diagnosis Mistakes. The code technically stands for: Catalyst System Efficiency Below Threshold. Your Trax has at least two oxygen sensors, one before and after the catalytic converter. It covers Chevy Sonic P0420 meaning, symptoms, causes, and possible solutions. P0420 is a OBDII trouble code. L. Leo99: Leo99. 98 explorer with code P0420(catalyst system efficiency below threshold)(Bank1) and P0174 (System too lean)(Bank2) The explorer idles very rough in cold weather, dont want to stay running until it warms up.

NJ. For most people the first sign that anything is wrong at all is the service engine soon light coming on. Re: 2011 Cruze 1.4T P0420 code [Re: Carbon12] #4146344 07/08/16 07:59 PM: Joined: Mar 2014. Chevy Trax P0420 OBDII Code Defined. Chevy Cruze P0420 Code Symptoms The P0420 code in a Chevy Cruze will often be thrown one of your oxygen sensors are not functioning properly. 2012-2016 Chevrolet Sonic . Posts: 4,740. Here are the typical symptoms that something is wrong when you have code P0430. Typically, the code will be triggered by the upstream oxygen sensor (before the converter). P0420 Code In my Chevy Cruze even after replacing cat converter and O2 sensors. Campaign 14801A (Emissions Reflash) was …

What is the best way to narrow down P0420 engine code on 2014 Chevy Cruze 1.4 L. I don’t want to spend a ton taking it - Answered by a verified Chevy Mechanic

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