Ok so a few months ago my ap1s spark plug came lose and burned up, so I changed the plug and coil, but now the car starts and runs but when I come to a stop the idle drops all the way and the car shuts off so when I try to start it it turns over bit wont crank over then after trying to start it the main battery fuse blows. I wanna know if it cloud be that a valve is bent or the piston is bad only thing is I dont think it would start or idle right at all if those are the problems. Oh and also my knock sensor broke a while ago but this happened before the spark plug problem and was running fine except vtec wouldnt hit. Also had a vacuum line tear at one point bit that got fixed, so please people help me out I dont wanna pay deler prices to fix if its an easy fix. Please help thanks guys.

 

okay so if your batt fuse blows, when you replace it, what happens?

 

When I replace it it will start itll sit there idle fine but once I drive n come to a stop itll do the same idle drops car stall when I try to start itll turn but not crank over n fuse blows so after it shuts off I gotta wait a long time to start it again.