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Discussion Starter · #1 ·
well for the past month ive been getting this code P0440-GENERAL EVAP SYSTEM FAILURE. ive been told to retighten my gascap. and i do. reset the pcm and it comes back. for fuel i have the bottle neck mod done, s1 inj about to put in some rc 750s, agp returnline. and im using an safc2 to tune.


what other causes could be doing this, i do notice some random puffs of smoke which smells nothing like oil or coolant. so im really puzzled as to what could be doing this. any help would be great thanks!
 
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