What does the code p0421 on OBD-II mean?
If you are reading this, I assume that your OBD-II equipped vehicle has stored a code P0421. This means that the powertrain control module (PCM) has detected a problem with the efficiency of the catalytic converter warm up function for engine bank one.
How much does it cost to fix a p0421 Mitsubishi?
If the P0421 code is combined with other codes, try fixing the other codes first. The cost to diagnose the P0421 MITSUBISHI code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What should I look for in a p0421 catalytic converter?
With a P0421, I would begin with a visual inspection of system wiring harnesses and connectors. Meticulously inspect harnesses that are routed near hot exhaust pipes and manifolds, as well as those that are routed near sharp edges like the ones found on exhaust shields.
What is the code for check engine light?
This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $0.0 .
When is the p0421 code set on a car?
The P0421 code is set when the Engine Control Module (ECM) detects rear HO2S value difference becomes closer to value of front HO2S. The ECM monitors when vehicle speed is 25-60 MPH, load is 22-45 percent and engine speed is 1000-3000 RPM.
What to do if your OBD scanner says P0420?
Replacing your catalytic converter can ensure efficient operation of your car’s exhaust system. You may also have to replace the oxygen sensor. After you’ve replaced or repaired these two components, check your OBD-II scanner again to ensure you’ve completely solved the OBD-II scanner error code P0420 or P0421 problem.
What does it mean when your engine code is po420?
This warning comes in an engine trouble code – PO420 or PO421. Depending on the symptoms, there are a few likely causes and solutions. For many drivers, the first sign that the catalyst efficiency is below the threshold is that the Check Engine Light turns on. In many cases, drivability will appear quite normal.
When do you get an engine trouble code?
This warning comes in an engine trouble code – PO420 or PO421. Depending on the symptoms, there are a few likely causes and solutions. For many drivers, the first sign that the catalyst efficiency is below the threshold is that the Check Engine Light turns on.