My 1990 190 E misfires while idles and when I put it in drive it is worse and has no power to hardly Move it

Did a head gasket, valve cover gasket, spark plugs, timing chain, timing adjustment, wires, plugs, air filter, checked fused, the ohm reading to the distributor and ECU are not reading right.

it will start every time and will idle but runs so rough when you try to move it at first it is wanting to but then it has no power and eventually cuts out.

the horn is disconnected and the hood latch is broken, the vacume on the doors has to be reset with the trunk key to be able to close the doors.