ca sensors faults

[ss_ute_boi]

my ssv has been hard to start the odd times (3-4 times a week) this happens it runs hotter and really sluggish pops and misfiring changing down thro gears..the usual engine check and abs lights up on these times aswell.my friend at mercedes benz ran it on computer and came back with these..what are they and are they something i can buy and replace myself.

# abs 056 on bus invalid data
# c0899 power supply circuit low voltage
# p0102 maf circuit low input
# p0335 ca sensor malfunction
# p0336 ca sensor performance
still havent been able to nullify the steering wheel groaning noise any help would be great

 

[RiCeY]

Crankshaft position sensor..