Re: The engine light is on. The machine say code 449.And...
CODE PO449 EVAP VENT SOLENOID CONTROL CIRCUIT MALFUNCTION CONDITIONS. CHECK FUSE IF GOOD THE VENT SOLENOID FAILED.EVAP LOCATED ON A BRACKET NEAR THE FUEL TANK.
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The codes only tell the mechanic what to test, not what to replace.
You would need to get the shop manual for your vehicle to have the test instructions for each code.
Code 452 is a problem with the fuel tank pressure sensor circuit, 443 is evap canister purge and 449 is the vent valve circuit.
The evap system and those components would need to be checked out.
Code 449 is for a defective vent valve solenoid. The engine computer can not open or close the valve or can not tell if the valve is operating.
The valve/solenoid would need to be tested and you will probably need a shop manual to get the testing procedure.
Maybe.
Codes 121 and 122 are for the throttle position sensor circuit.
Code 400 is EGR and codes 449 and 452 are for the EVAP system.
Code 1639 is for a problem with the 5 volt reference circuit from the engine computer.
The throttle position sensor could be failing which could prevent the gas pedal from working. And the 5 volt reference problem could shut down the computer which would kill the engine. EGR is an emissions component and EVAP is the system that vents gas fumes from the gas tank.
Codes are only a guide for a mechanic to troubleshoot the circuits involved. They do not mean a component is faulty.
p0443 is evaporative emission control system, purge control curcuit malfunction, p0449 is emission control system, vent control curcuit malfunction. p0449 is often a filler cap problem on fuel tank. try tightening cap
That code is for cylnder bank 2 running lean, there is actually an open technical service bulletin for this issue on your car, for clogged fuel injectors. That could be the problem, as well as a vac. leak, a malfunctioning bank 2 sensor 1 oxygen sensor.
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