i just threw back in my b16 into my da. it fired up fine, but then the check engine light came on. i checked the ecu [ pr3 mugen chip obd0 ] and it threw codes 4 and 21

now code 4 is for the crank position sensor

and code 21 is the VTEC spool solenoid valve

my car drives fine but then the problem is that i cant shift above 3000 rpm. when i try to go over, it kicks out backfire and sounds like ish. is that from these codes or is it simply that my ecu is in limp mode?

with the whole 3000 rpm thing, i remember my car doing that the last time i drove it last year and thats how i ended up bending my valves



how can i take care of these problems? i want to take my car to get tuned but this is holding me up. ANY ADVICE WOULD BE GREAT !


thanks guys

 

??