Hello guys back again.I got po 505 again it went away and now came back.I already cleaned the tb and replace Iac,Spark plug wires and the car is spluttering.If anyone knows what else I can do.

 

My car check engine light turned off now is this normal.I changed my lac a couple of days before and it was still sputtering I took for a drive and I was really stepping on the gas and light went off while driving.Has this happened to anyone else.