ok i just did a motor swap its a b18a1 and im dont no what wrong with it it runs good dont miss or smoke but at idel it runs good i can rev on it and its runs ok but cuts out a little at high rpm now i can drive it and it runs like **** cant even get over half throttle it cuts out bad i can nail the gas and the motor will just cut off i can let off the gas and the motor will start up agin could it be the stock si pupm or could it be some ground wires i need help asap

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90si_mugen_crx &raquo;</TD></TR><TR><TD CLASS="quote"> let off the gas and the motor will start up agin could it be the stock si pupm </TD></TR></TABLE> lol sounds like you messed up lol jk i think it could be the stock pump chek the injectors 2

 

The motor is bogging? did you check your timing?

 

yes i got the timing set it dont mis it runs good at idel just when i drive it i changed the fuel fliter and it run better for one day after that i started running like crap agin i order a new fuel pump today think it could be picking up trash from the tank stoping the filter up could that be it