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Before I even finished reading this i knew you had a clogged cat. If you have fixed everything you mentioned i would lean towards a clogged cat. This is a large reason this code pops up.
To check this you could pull that cat out and drive around and see if the code comes back, make sure to stay away from the police though.
P1410 - Fuel Tank Pressure System P0441 - Evaporative Emission Control System Incorrect Purge Flow P0773 - Shift Solenoid Electrical P0446 - EVAP Vent Solenoid Valve Control System
Ok, above are the codes listed on your description and there respective definitions. the P0441 and the P0446, basically run parallel and they mean the same thing. Its concerning the disposal of fuel fume waste that is burned in the EVAP canister during the EVAP process. the EVAP vent solenoid valve will have to be replaced.
The P1410 can be resolved be replacing the fuel pressure regulator which is part of the fuel pump assembly. I would also make sure the gas cap is correctly screwed on and its tight and mot lose.
The P0773 is quite different than the others. this concerns the solenoid that is located in the transmission pan. the scan has detected a malfunctioning solenoid that may ****** the shifting cycle of your transmission.
The EVAP situation will fail the emission's test if not fixed but, this shift solenoid issue, although not an emission's issue, should be check and fix soon.
It is possibly emmissions related. I wouldn't worry about it unless it comes off again or you notice your truck running differently. If it does pop off again, you may want to buy a .80 hose clamp and just clamp it back on to where it pops off.
What kind of car is it
2002 CADI DEVILLE
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