Oxygen Sensor And Catalyst Efficiency
The catalyst efficiency monitor verifies that the catalytic converter is operating at a high enough efficiency rating to keep exhaust emissions within predetermined values.
Oxygen Sensor And Catalyst Efficiency
The catalyst efficiency monitor verifies the catalytic converter is operating at a high enough efficiency rating to keep exhaust emissions within the predetermined values. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. These “tests” are called the readiness monitors.
Catalyst Efficiency Diagnostics
When making the tough decision on replacing a customers catalytic converter your diagnosis must be accurate.
Undercover: Herding Cats Can be ‘Exhaust’ing
Real life has proven that the life span of a catalytic converter varies as greatly as the life span of the vehicle itself. One catalytic converter may not fail in 200,000+ miles, while another won’t even make it out of the vehicle’s base warranty. One thing is for sure, they aren’t going away as long as vehicles are powered by fossil fuels. So let’s talk some about how they work, then move on to spotting one that is misbehaving.
Diagnosing Misfires
What if there are no codes and a misfire is intermittent? This is where it gets complicated.Â
Fuel Pressure Diagnostic Service
Use a scan tool that can look at special direct fuel injection parameters and perform bidirectional tests.
Spark Plug Replacement
Here are some tips to follow when replacing a spark plug.
Oxygen Sensors And Catalyst Efficiency
Newer air/fuel ratio or wide-band sensors can detect a wide range of fuel conditions.
Fuel Pressure Diagnostics
Direct injection pressure is measured with sensors, and the signals are used to determine pump speed and/or volume.
New Rislone ‘DEF Crystal Clean’ Clears P20EE Codes
The product scrubs away crystal contaminants from the selective catalytic reduction systems of diesel cars, trucks and SUVs.