How to test the catalytic converter and O2 sensor?
Introducing propane into the car air intake will aid diagnosing the catalytic converter and O2 sensors. To run this test the car should be warmed up and running in a closed loop. 1. Connect the scan tool 2.
What should the OBDII reading be on a bad catalytic converter?
The ECM would interpret that as a bad catalytic converter. In that case, your OBDII scanner should be reading a lean 0.1v reading from the downstream sensor. You can add propane fuel to the exhaust to force the reading up to prove that the downstream sensor is good.
Can a catalytic converter turn on a check engine light?
If the catalyst monitor runs its self-test and finds the converter is functioning within acceptable limits, the vehicle is in emissions compliance and no codes are set. But if the catalyst monitor finds efficiency has dropped off and the converter is slow to respond, it may set a P0420 code and turn on the Check Engine light.
How can I improve the efficiency of my catalytic converter?
1. Connect the scan tool 2. Set the scan tool to monitor the upstream and downstream O2 sensors and the short and long term fuel trims 3. With the car running, introduce propane into the air intake (all your O2 sensors should respond with a high steady voltage)
How to choose the best Honda Civic catalytic converter?
Converter Enter your VIN for the most accurate results. Enter your VIN for the most accurate results. We offer a full selection of genuine Honda Civic Catalytic Converters, engineered specifically to restore factory performance. Please narrow the Cat. Converter results by selecting the vehicle.
Why is it important to diagnose a bad catalytic converter?
Catalytic converters are very known to fail in a lot of cars and are often very expensive also if you are looking for a brand new. Diagnosing a bad catalytic converter is very important to make sure that you do not replace a fully functional catalytic converter because of the replacement cost.
When do I get a P0420 code on my catalytic converter?
In most cases, you will experience a P0420 or a P0421 code. These are the codes that appear when the engine control unit has detected a bad catalytic converter. If you want to learn more about these codes you can find out our other article here: P0420 Code.
What does a clogged catalytic converter smell like?
Sulfur Smell When catalytic converters clog, they restrict the airflow of exhaust gases so that the engine of your car runs on a rich air-fuel mixture. The combustion of this excessive mixture causes an odor like rotten eggs. This smell smells like burnt sulfur, which is an obvious indication of your catalytic converter’s malfunction.