So I bought a 99 ex coupe that already had a B16a conversion in it. It ran fine the first few months but now it has a power loss n backfire issue. My question is what ecu is suppose to be used for this conversion or what is recommended. Also the distributor has been rewired so I'm not sure why. It runs good at times then other days not so good. THX

 

Check your basics, Spark plugs, oil, ignition timing