i have a b16sir2 swapped into a 1992 cx hatch back. whenever it warms up it will go wah wah wah every second at a consistant speed from around 1000 rpm to 1500. does anyone know how to fix this. another question. once you have thrown a code and got it fixed how do you reset your ecu?

 

check your iac valve or your temp sensors to clear the code (if you fixed it) you can disconnect the battery for like 3 min or pull the ecu fuse for 3 min

 

check the map sensor and vac lines going to it also.