ok, i just swapped my s13 with a s13 black top sr, mostly stock, just has a mani, dp, front mount and greddy bov. got everthing hooked up and started it first try. it idles fine but under any load it bucks and there is no power like it has a boost leak. i have been over and over the ic piping and there are no leaks. as soon as i try to give it gas it just doesnt want to do anything except buck, sputter, and go no where. i can barely drive it around the block. i unplugged the maf and the motor almost dies so the maf is working.. i am stumped and i need the car for work on monday. anyone have any ideas?

 

is your bov recirculated? are you running an afc tune or anything?

 

bov is open,no safc. that is not the problem though, because the motor came out of my buddies car exactly how i have it and it run fine..

 

hmm...make sure all sensors are plugged in, make sure relays and fuses are good, make sure your getting spark on all cyl., but i guess its somewhere to start, g/l

 

check your tps

 

^ya that too

 

i will check that when it stops raining. how do i check the tps

 

Nissansilvia.com -> TPS Throttle Position Sensor (SR20) - Hardtuned.net

 

ok, i cant find my volt tester so i cant check the tps tonight but i will buy one tomorrow and check it. i did however mess with the timing and it is running soo much better, the car trys to boost but it just cuts out and falls on its face. i just reset the ecu and i am going to go out and try it and see what happends.. any other ideas would be great.