So yesterday morning I drove it to work fine and then when I went to drive home in the afternoon but it wouldn't start. Got someone out which tested battery, alternator and relays and is saying the dim relay is the issue. So he took it out and out it straight back in, the car started but is now running rough as guts. Like 400 to 500 rpm and constantly trying to stall until I give it revs and then it seems to run a little better but then as soon as I let off of the throttle it goes back to 400 rpm and stalling. So far I've checked spark plugs which look fine, tried testing the coil packs but I think ive done it wrong as I don't get any reading from any of them. Tested the din relay which I did get a reading but idk if I tested it correctly or not. Would anyone know what the problem may be. Kinda gotta get this fixed asap and don't really have the fund to get a cheap shitting car for the time being... please help !!