Check P0477 Fault Code
When you check engine light came on code P0477 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0477 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
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Parts or components should not be replaced with reference to only a P0477 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. |
P0477 Possible Fix :
Check your choke plate. Is it positioned correctly? Is it still working as it should? Does it open completely? If not, then you either replace it or repair it. If the damage is quite severe, I suggest you put down your repair tools and start looking around for a replacement choke plate to avoid a repeat of this nasty episode.
P0477 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0477 OBD-II Trouble Code Exhaust Back Pressure Regulator - Is a variable position valve that controls exhaust back pressure during cold ambient temperatures to increase cab heat and decrease the amount of time needed to defroReason For P0477 CodeThe reason of P0477 OBD-II Fault Code Check is P0477 Exhaust Pressure Control Valve Low. |
P0477 Solution:
Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
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What does fault code P0477 mean ?
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How to Clear P0477 Trouble Code
An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.