P0436 OBD Error Code: Problem & Solutions

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The performance of the Catalyst Temperature Sensor Circuit is monitored by the engine control module which measures the temperature of the catalyst. The main function of the catalyst temperature sensor is to increase their resistance with increasing exhaust gas temperature. When the catalyst temperature sensor signal would be not as per the factory specifications, then the ECM would set up the P0436 trouble code.

 

The trouble code P0436 can be defined as Catalyst Temperature Sensor Range/Performance (Bank 2).

The error code P0436 would indicate that a catalyst element for the engine bank 2 is not functioning properly as it should. This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another.

 

This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

 

What causes this problem with the Catalyst Temperature Sensor Range/Performance (Bank 2)?

 

• Failure in the manifold air pressure sensor
• Some defaults in the pressure regulator
• Failure in the oxygen sensor
• The temperature sensor harness might be opened or shorted
• Defects in the temperature sensor
• Bad electrical connection within the temperature sensor circuit
• The coolant temperature sensor might have some flaws
• Flaws in the fuel injection component
• There can be a leakage in the down pipe
• Leaking flex hose
• There can be usage of incorrect fuel
• Oil might be contaminated
• Defective spark timing
• Leakage in the exhaust manifold
• Faults in the mass air flow sensor

1. Camshaft Sensor - A faulty boost control solenoid can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Oxygen Sensor - If everything is alright with PCM, then there is surely some defect in boost pressure sensor. Get it replaced before the situation gets worse.
3. Powertrain Control Module - P0436 code can display due to some vacuum leaks. So, it is very important to replace the auto leaks with us at equitable prices.
4. Air Fuel Ratio Sensor - Do you remember when was the last time you got your car air filter cleaned up? A dirty air filter can cause a lot of issues like displaying P0436 code.
5. Engine Control Module - There can be some issues with the PCM due to which you may see P0436 code appearing over and over again. Visit us to buy best quality PCM online.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0436 here:

 

Common Symptoms

 

• Diminishing overall fuel economy
• Overall increase in the emissions
• The check engine light might start appearing
• Poor engine performance

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

 

• Carefully repair a bad electrical connection within the temperature sensor circuit
• Replace the faulty temperature sensor
• An open or shorted temperature sensor harness should be repaired properly

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Here are some steps which you should follow in order to diagnose this fault code:

 

• After verifying the code with an OBD-II scanner, the mechanic should perform a visual inspection of all the electrical components, looking especially for corroded or loose elements, and the exhaust system for leaks.
• If an issue is present in either area, then that issue should be properly repaired, and the code should be cleared and the system should be retested
• If, after these two diagnostic procedures, the code returns, it is most likely that the catalytic converter has some failure
• The mechanic should continue attempting one repair at a time, clearing the code and retesting as they go, to ensure they pinpoint the problem. This process will ensure that no unnecessary repairs are made

Common Mistakes When Diagnosing The P0436 Code

 

• Most of the people might blame the oxygen sensor mistakenly. The reason behind this is that there can be a presence of the oxygen sensor code at the same time as the P0436 trouble code and due to this the mechanic might replace this part directly, when it reality it is perfectly alright
• There are many cases where the biggest issue that technicians report is a previously repaired converter that did not have the underlying cause addressed. Without addressing the cause of the faulty converter, a new converter will likely fail again in a short span