aftermarket o2 sensors need to be an oem replacement, the length of the wires ( resistance can cause faulty reading ).
but u do get faulty new o2 sensors here and there. just get it replaced and...
i got yellow speed coils. save up and get u tein super flex or something top of line.
i got mine on max and only after i rebushed everything it feels a little track worthy. its fine on streets...
^ what he said
Check your battery, test for volts. should be 13-14 while the car is running.
The grounding wire on starter motor does usually come loose and might be holding on..
...dont put addictives in your fuel system after u installed a new filter....it'll get clogged faster...
and no its not safe, people add a small air filter to the cover but theres no point.
Buddy club spec 3 are good but more of a upgrade for a vtir as they are only slightly more agreesive . I seen people use skunk 2 cams and heard good gains with stock type r cr .
It really depends...
Dude, is ur shifter atm stock or aftermarket?
some aftermarket shifters requires spacers put between & installed on the shift linkage. bolts that bolt your shifter do become loose as well.
It can but unless its drematic it shouldn't cause a rotary noise. u sure ur mates not playing with u and swapping the map sensor and tps sensor around? haha.
Just make sure ur coolant isn't dirty,...
Check for leaks above as said.
reset ecu and let it ecu relearn itself.....
no tune? 70mm upgraded from a standard b18 62mm is a big mindfk for stnd ecu