Is the catalyst converter on my Sentra GXE bad?
I had previously dtc p0420 (Catalyst Converter BAD) on my 2002 Nissan Sentra GXE (1.8L), so on advise of the mechanic got the Catalyst converter replaced. Since, O2 sensors were fused with the old Cat, hence had to get them replaced too. Now, for inspection maintenance, both Catalyst monitor and Oxygen sensor monitor show NOT READY status.
Is the P0420 DTC code a trouble code?
The P0420 code is a very popular one and that’s why there’s a site dedicated to that specific trouble code. If your car’s check engine light is on, get that code read in case it’s a P0420. A P0420 code is a trouble code on OBD-II equipped vehicles.
Are there any DTCs associated with the p0340 sensor?
Double check these before coming back to the CMP. DTC P0340 or P0345 may be accompanied by other DTCs, such as P0300 Random Misfire, P0725 Engine Speed Sensor Circuit, or P0335 Crankshaft Position Sensor Circuit Malfunction.
What kind of exhaust system does Nissan Sentra GXE have?
Nissan Sentra 2002 GXE has a configuration SIMILAR to SEMI DUAL exhaust. SEMI DUAL exhaust systems have 2 CATs for 2 banks of cylinders & after the CATs the exhaust join through a Y type pipe to pass through a single muffler to the final tail piece of the exhaust.
I had previously dtc p0420 (Catalyst Converter BAD) on my 2002 Nissan Sentra GXE (1.8L), so on advise of the mechanic got the Catalyst converter replaced. Since, O2 sensors were fused with the old Cat, hence had to get them replaced too. Now, for inspection maintenance, both Catalyst monitor and Oxygen sensor monitor show NOT READY status.
What causes the P0420 trouble code on a Sentra?
There are many things that can cause the P0420 trouble code in your Sentra. Here are the most common ones. Oxygen Sensor – The P0420 codes is thrown when the oxygen sensors on both sides of the exhaust have very similar readings. When the oxygen sensor is bad, it can cause a false reading and trigger the code.
What does P0420 mean on a catalytic converter?
Here’s the official definition of a P0420 trouble code: P0420 Catalyst System Efficiency Below Threshold (Bank 1). What the code is telling you is that the catalytic converter has failed an efficiency test. In 99.5% of the cases, this code means that the catalytic converter itself is bad and must be replaced.
What are the oxygen sensors on a Sentra?
Your Sentra has at least two oxygen sensors, one before and after the catalytic converter. Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter.