Car won't start

I got a 2003 Honda accord when I crank it over it
don't sounds like it's dead sometimes if I keep
cranking it if it won't turn over at all but then if I
keep going and turning and cranking it will end up
starting up but sometimes it between it kind of
sounds like it's sizzling or something but nothing is
burning under the hood never keep going to this
starts right up like there was nothing the matter I
replace the alternator I put 160 amp alternator in it
I got a new battery it has a check engine light on
and it's got a maintenance required light on now
constantly and a p0135 code