i have a b16a sir2 in my 92 cx...once the motor warms up the idel surges between 900 rpm and 1200 rpm...it also throws a code...but when i check the code no code appears...what is the problem?..i thought it was the IACV but recent search's show that a faulty IACV would show diffrent symptoms..any idea's?

 

ecu is a virgin jdm p30

 

It could be the tps.

 

how do i check the TPS to see if its working or not?

 

Before I say anthing else, you say you have a code, but when you check it none appears. Are you checking it properly by jumping the jumper plug with a paperclip?

 

yes i jump the code usig a paper clip and the jumper harness