I have a 89 chevy. It keeps on losing spark and wont spray gas at the injector. They both happen at the same time every time. Then u let it sit over night or take out batt. It will start to work and run great for two or more days then happens all over. So I checked wireing to comp. Good connction there. So I changed the comp. Thats what I was told it was and ran good for two days and happined all over. Help please dont know what else to try. Thank you.