this is the basic model 1.8
I solved the code P0335 crankshaft position sensor but still get a nasty P0455 evap leak (large)
I replaced the gas cap, I will recheck if there is anything wrong with it (bought it from Nissan dealer)
I have been checking online any info I could get my hands on this
I do not think is the filler neck since does not look corroded (i replace one in my sons 1999 pontiac, it was bad)
what else can be wrong to cause the problem??

thanks
arch06