hey all,took my 91 crx for a drive on the weekend after bout 5 mins the engine light came on and stayed on till i got home.i then switched it off,checked under the hood,found nothing and turned it on again but the light didn't come on.now i'm nervous taking it for a drive.i know it's probably a broad question and i appologise if this has already been discussed,but does anyone know what things trigger the light.a few weeks ago the speedo stopped working and as a result the engine light came on but once i replaced the speedo cable it switched off so thats one obvious reason. can anyone help please?