Had a differ code like said small leak. replaced . solonoid above gas tank.engine ligt still on replaced solonoid on motor said mechanic.engine light still on reads code p449 now solonoid bad. what else can it b.
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Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling
the fuel tank with the engine running could conceivable cause this code as well
or if the cap wasn't properly tightened. Any of the following could also be
A small leak in any of the EVAP hoses or fuel tank hoses
Do you mean code P0442? I would assume that's what you mean since you said it relates to the Evap System
This code indicates that there is a fuel vapor leak in the system. This means that a very small leak has been detected. The leak can be from a hole as small as 1mm
This code point towards any of the following: a loose gas cap or a non factory spec gas cap a small leak or hole in the fuel vapor hose/tube faulty vent o-ring seal
The most common fixes is to re install the gas cap, clear the codes, and see if the code returns. Or replace the gas cap and clear the codes and see if it returns. Finally inspect the hoses/tubes for cuts/holes
This code in no way points to a canister requiring to be replaced.
P0449 and P0455 has to do with the Evap Canister control solenoid which causes a large vacuum leak. I think the replacement part number is 19207763. The part is located back by the fuel tank, mounted to its side.
evaporative emission (EVAP) system has a large leak. Check the gas cap or vent valve. these are the most common problems.
The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II
Enhanced EVAP systems are in place to keep fuel tank vapors from
venting into the atmosphere, and instead purges them into the engine to
be burned. Regular pressure tests are conducted by the PCM to monitor
the sealed system for leaks. The PCM monitors the EVAP system pressure
by watching the Fuel tank pressure sensor (FTP). When the sensor
indicates a small leak in the EVAP system, this code is set.
Here are some additional causes.
* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
* The EVAP Canister may be leaking