I have a little problem. My battery was much too small for me, and also broken. I got an OPEL battery from a well-known one. It has round bolts. My Escort battery but flat. got me such adapters, the connection of the small black fuse box I just bent right. If I turn on my car now (if it is cold), it only goes to 1500 rpm, which is normal. A short time later it goes down to about 900, which is not normal, because he does that normally only when I have driven him briefly. If I have driven a few meters, or rolled, he goes down to 400 rpm, respectively. What should I do now??? Don’t get the mistake out. I also looked again, everything is connected correctly, and to the last. Gruss BOB