#2013 EQUINOX CATALYTIC CONVERTER SOFTWARE#

For most people, the first sign that anything is wrong is the service engine soon light coming on. There are rarely drivability issues associated with P0420. The P0420 code in a Chevy Equinox will often be thrown if one of your vehicle’s oxygen sensors is not functioning correctly. The bank 2 version of this code is P0430. A quick Google search for your vehicle’s engine and model year can quickly confirm that. Typically, the first cylinder is closer to the front of the engine. Most vehicles only have one catalytic converter But, if your vehicle has dual exhaust, you’ll need to determine which side of the engine is the bank one side.īank one is the side of your Equinox’s engine with the first cylinder. You can ignore this section if your Equinox has an inline engine or if the exhaust manifolds merge into one pipe before the catalytic converter. The O2 sensors are not reporting the right readings from the exhaust.The catalytic converter is losing efficiency and needs to be replaced.The exhaust is escaping before it is measured.

#2013 EQUINOX CATALYTIC CONVERTER SOFTWARE#

When the readings from each O2 sensor get close, the software in your Equinox’s PCM believes that the catalytic converter is no longer doing its job. These readings shouldn’t match since the catalytic converter is supposed to scrub the pollutants from the exhaust. When the readings from the upstream and downstream oxygen sensors show similar readings (not enough pollutants expelled from the exhaust), your vehicle will throw the service engine soon light (P0420). Efficiency Below Threshold An upstream O2 sensor Catalyst system efficiency is the percentage of these chemicals removed from the exhaust system. Your Equinox’s exhaust contains hydrocarbons, carbon monoxide, and other harmful gasses. P0420: Catalyst System Efficiency Below Threshold (Bank 1) Catalyst System Efficiency Here’s the technical definition for your vehicle: P0420 is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code.

2013 equinox catalytic converter