What is the p0432 main catalyst efficiency below threshold?
I have a 2003 Jeep Grand Cherokee. Engine is 4.0. It is a 2 wheel drive and has 204K. 3 weeks ago, my CEL came on with code P0420. The first mechanic changed the front cat converters and the code cleared. 3 days ago, the CEL came back on but is now pulling P0432, which t…
What does a P0420 code on a catalytic converter mean?
This code indicates that your car’s computer has detected underperformance from the Bank 1 catalytic converter. What Does the P0420 Code Mean? A P0420 code indicates an issue with the catalytic converter. A catalytic converter has an oxygen sensor in the front (upstream) and another on its rear (downstream).
When does Bank 2 indicate a p0432 DTC?
If at any point the PCM detects that the post-catalyst o2 sensor is switching too rapidly (indicating no change between the inlet and outlet of the catalytic converter) it interprets this as a catalyst that isn’t functioning properly. Bank 2 is the side of the engine that does *not* contain cylinder #1. Symptoms of a P0432 DTC may include:
What’s the diagnostic code for catalyst system efficiency below threshold?
P0430 is a diagnostic trouble code for “Catalyst System Efficiency Below Threshold (Bank 2).” It warns about a problem with the catalytic converter mounted near engine bank 2 (the side of the engine opposite the number one cylinder).
What does p0432 mean on engine Bank 2?
The P0432 code indicates that the efficiency for the catalytic converter on engine bank 2 is below efficiency. It may also appear in conjunction with the P0434 code (heated catalyst temperature below threshold for bank 2), or with one or more oxygen sensor codes.
I have a 2003 Jeep Grand Cherokee. Engine is 4.0. It is a 2 wheel drive and has 204K. 3 weeks ago, my CEL came on with code P0420. The first mechanic changed the front cat converters and the code cleared. 3 days ago, the CEL came back on but is now pulling P0432, which t…
This code indicates that your car’s computer has detected underperformance from the Bank 1 catalytic converter. What Does the P0420 Code Mean? A P0420 code indicates an issue with the catalytic converter. A catalytic converter has an oxygen sensor in the front (upstream) and another on its rear (downstream).
What is the diagnostic code for main catalyst efficiency below threshold?
P0432 is a diagnostic trouble code (DTC) for “Main Catalyst Efficiency Below Threshold (Bank 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.