my car wasn't working for about a month and it turned out to be a bad ignition module. i fixed it and now my tach and fuel gauge dont work and when i turn on my headlights it makes a buzzing noise like when you forget to turn off your lights. whats wrong?

 

Well your tach problem could be the result of a wiring problem from the ignition control module to the igntion coil. Have you done anything under the dash that might cause a problem with the other two items listed. Bad ground wire or audible alarm unit.