My keep started running super rough and throwing the two codes today. Has anyone had these problems? I'm thinking I need to change the injector, but seeing if anyone else has anything else to check. Thanks

Check the wires and connector for the injector on cylinder #8 for looseness or damage. Also check the ground wire. JMO

Well I changed the injector, put a new clip on it, checked all grounds, and also changed the tps. It runs a little better and doesn't throw the misfire code, but still has the injector code and runs rough. Any other ideas? Thanks.