96 Buick Century won't pass imisions code P1441

Check this video John. Front Turn Signal Change Buick Century 1997 2005 1999 Buick Century...

• P0480 BUICK
  Refers to "Cooling Fan Relay Control Circuit"

Number of possibilities. See if you have any diagnostic codes stored. Could be throttle position sensor, coolant temp. sensor, hard to say. I would start with the codes. Does it start easy when warmed up, and run good? Boy, I just don't know.

Check for broken wires in the door jamb of the drivers door. You will have to **** the rubber boot which the wires pass through to gain access. This was a very common problem for those vehicles, and there is probably more than one wire broken.

There could be a multitude of things wrong with the AC but the most likely culprit is that your system simply needs charged. You will need to take it to an auto shop to have the system purged and recharged, this isn't something you can do yourself as you must be licensed. If the AC is indeed broke, the shop won't be able to charge it and should let you know that there is an issue.

Thanks, a vote/feedback is always appreciated. =)

The radio in my 1996 Buick century had a clock light that did not go off when the car was shut off, so the battery would go dead after 2 days. Disconnected the radio and all was well. Getting ready for a new radio now.

It refers to the evaporative emissions canister and a problem of maintaining a certain level of vacuum in the fuel tank

P0440 is a EVAP leak detected, try changing the gas cap and reseting the ECM to clear the service engine light. If you can not clear the code it takes about three start up with out any issues to clear the code and after 100 start up's the codes will clear from the ECM's history. Note use the GM OEM gas cap for a replacement, anything else is just garbage and you'll be replacing it again with in 6 months. If it's not the gas cap, need to take it to a garage and have them do a smoke test to locate the leak in the system. Good luck and hope this helps, keep me posted. be glad to help

Check fuel pressure regulator

P1441, EVAP Emissions System Flow During Non-Purge.
you seem to have an evap problem these problems are hard to diagnose sometimes it can only be the gas cap or maybe rust around the seat of the gaz cap
get the code erase and see if it comes back on and if it does check gas cap and arroung the filling neck if there is rust if no visible rust apears you will have to get it check with smoke to see where it leaks

hope it will help you

Have a great day

Denis