1986 Nissan King Cab "husband pegging" Questions

1986 king cab my husband has a 1986 nissan king cab with a z24i motor and was driving home from work and it started running badly and acted like it had no power going up hills we can't figure out what

2005 chevy impala ignition switch my husband is changing the ignition on my car and when he took off the ignition the black piece at the bottom (that had the wires connected to it) a bunch off little ...