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Guide To P046F OBD Error Code Solutions

OBD Code P046F - Exhaust Gas Recirculation Sensor "B" Circuit Intermittent/Erratic

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Are you experiencing fall in engine performance? Did you recently face rough engine idling and stalling? If your answer is YES, then chances are pretty high that your vehicle is set to OBD error code P046F. This error code is set up due to number of causes that we have listed out in the subsequent sections for you.

Learn More about OBD Error Code P046F

We understand how you feel when your vehicle is diagnosed with some alien code like P046F. You must be curious to know what this code it and what causes it. We have answers to all of these.

If the powertrain control module of your vehicle detects that there is an abnormally voltage conditions on the egr sensor b circuit, it will set OBD error code P046F. Now, let's have a look at few of the common causes behind this code.

 

What causes this problem with the Exhaust Gas Recirculation Sensor "B" Circuit Intermittent/Erratic?

 

  • Malfunctioning EGR volume control solenoid valve
  • Build-up of carbon on EGR valve
  • EGR Volume control solenoid harness issues such as open or shorted EGR volume control solenoid valve harness
  • Poor electrical connections with the egr volume control solenoid
  • Issues with egr temperature sensor and circuit

Replace/Repair These Parts To Fix OBD Code P046F

  1. EGR Parts - Facing OBD error code P046F? Chances are that you might need to undergo few egr parts replacement. We have in stock high end egr parts for every make and model on the Canadian roads.
  2. EGR Valve - Looking for egr valve to fix this error code P046F? If yes, then we have you sorted. We have in stock high end egr valves to fix all your vehicle problems.
  3. Engine Control Module - chances of your ECM going wrong is quite low for this issue, but if you still face problems with it you can find quality ECM’s with us.
  4. EGR Sensor Connector - Well, if you really wish to get rid of this problem you might need to undergo egr wiring and harness replacements. You can easily find them with us.
  5. Powertrain Control Module - If you need powertrain control module to fix this problem, all you need to do is to browse through our website. You can find the most budget friendly PCM’s with us.
  6. Diagnostic Tools - if you are in need of few diagnostic tools to become that DIY guy, then you can simply browse through website and get your hands on the best diagnostic tools.

Symptoms Of OBD Error Code P046F

Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P046F code by mentioning some major symptoms below:

 

Common Symptoms

 

  • Steep fall in engine performance
  • Rise in fuel consumptions
  • Illumination of check engine light (CEL)
  • Appearance of EGR related codes
  • High sensor voltage
  • Open or stuck egr pintle
  • Stalling engine
  • Rough engine idling

How To Correct P046F Exhaust Gas Recirculation Sensor "B" Circuit Intermittent/Erratic

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P046F:

 

EGR Valve Replacement and other related parts replacements, if found damaged.

 

However, if you face any issue then we have stocked a wide range of best priced EGR parts, EGR valve, Engine Control Module, EGR Sensor Connector, Powertrain Control Module and more to help you out in fixing your car.

Easy Diagnosis Of Engine Error OBD Code P046F

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

 

  • Since we are aware of the fact that obd error code P046F indicates low voltage error with the EGR sensor connector, circuit B. Keeping this in mind, you will need to first of all check for any corrosions, broken terminals or loose connections. If you come across any corrosion, try cleaning it and resetting the connector after that. Now, discharge the electrical connector and also the EGR. Check the EGR intake and exhaust for any blockage or clogging. Clean the junk as required for the smooth pintle functioning. Also check the egr vacuum lines to the solenoid and replace/repair it if found damaged.
  • If you own a Ford, you will need to check the two vacuum hoses from the EGR to the differential pressure feedback EGR sensor, also known as the DPFE in the exhaust manifold rear. Check the hoses for any corrosion. Make use of a screwdriver to remove the corrosion from the hoses and the sensors. This will make it function again.

Common Mistakes When Diagnosing the P046F Code

 

Few of the common mistakes that you can commit while diagnosing this P046F generic obd codes are listed as follows:

 

  • Failing EGR valve
  • Failing Powertrain Control Module (PCM)
  • Wiring failures

Other Diagnostic Codes Related To OBD Code P046F

P046C - Exhaust Gas Recirculation Sensor "A" Circuit Range/Performance

P046D - Exhaust Gas Recirculation Sensor "A" Circuit Intermittent/Erratic

P046E - Exhaust Gas Recirculation Sensor "B" Circuit Range/Performance