I had a bad air conditioning relay. I looked online and there was to check fixes, impossible problems turned out the relay was bad in the engine department. Let's swap that relay out with the horn relay out. And I see problem with solved though. Fast forward a week or two later I came to wanted to replace the horn relay and I saw three relays that look the same. I wanted to check the first relay on the left hand if you're staring at it from driver side front wheel looking in the very first relay is an EFI relay. I pulled that one to see if all three of those relays were the same because I was going to swap this buy new ones. Change them all out I used a cleaner on it but in the wire brush to kind of clean the ends up and plug everything back in. When I plugged everything back in my car won't start now. I don't know if it's all the fuses so far checked out. I have not checked the starter relay yet. I don't know if that's a possibility. All the fuses look good. All the relays look good. Everything it cranks fine but it just won't start