Hi yashallah el bey, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box? What year and specific model Impala?Hi yashallah el bey, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box? What year and specific model Impala?
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white smoke means antifreeze mixing with fuel= broken head gasket,how ever after fixing the problem,you may have to change you cat converter and all your O2 sensor
antifreeze clog the cat converters
You may need the shop manual for this.
First, it depends on the make model and year.
Code 651 generally means the computer is not "seeing" a 5 volt reference on a particular circuit. It does not always mean a sensor is faulty.
You would need to figure out which circuit is involved, and check it with a meter.
That code is a general location error code. According to what Ive read it has to be on a garage scanner to pin point the exact fault within that general error.
you are missing the 5 volt ref for the map, app, and tps. check the 5 volt at the map( easy one to get to) with the key on. if you have 5 volts then its an intermittent problem.
P0651 indicate a problem with the fuel tank pressure system. Insure the cap is tight ... Might want to inspect the gas cap for bad / worm o-ring or seals.. replacement would be recomended
Go to carhelpsite.com it is free as long as you click on 2 of the ads at the website then your questions will be answered by an ASE certified mechanic,you don't have to buy or fill out anything on the ads,so help keep the site free.
CODE PO452 FUEL TANK PRESSURE SENSOR CIRCUIT LOW INPUT CONDITIONS.YOUR FTP OR FUEL TANK PRESSURE SENSOR FAILED. PO651 5 VOLT REFERENCE 2 CIRCUIT MALFUNCTION CONDITIONS.POSSIBLE CAUSE 5 VOLT REF.CIRCUIT IS SHORTED TO CHASSIS OR SENSOR GROUND.OR 5 VOLT REF CIRCUIT TO MAP OR TP SENSORS CIRCUIT IS SHORTED TO B+.ALSO YOUR PCM HAS FAILED.YOU PROBABLY NEED TO TAKE IT TO DEALERSHIP.THEY HAVE DIAGNOSTIC EQUIPMENT TO CHECK SENSORS AND PCM FAILURE.
Hi yashallah el bey, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box? What year and specific model Impala?
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