tjhaf2007
New member
So I have some engine misfire codes, and Im really getting sick and tired of trying to diagnose the problem. It all started with a P0346 - Camshaft Position Sensor 'A' Circuit Range/Performance Bank 2 code. so i replaced the sensor and then i got a P0303 Code - Cylinder #3 Misfire code and a P0171 System Too Lean (Bank 1). So i swapped the coil pack from cylinder 3 to cylinder 1 and cleared the codes to see if that coil was causing the misfire. But that didnt make a difference, so I then swapped the cylinder 3 spark plug with the cylinder 5 spark plug, but I still getting a misfire. I replaced my spark plugs last year. Now I have 3 fault codes: a P0300 Random/Multiple Cylinder Misfire Detected code, a P0171 System Too Lean (Bank 1) code, and a a P0346 - Camshaft Position Sensor 'A' Circuit Range/Performance Bank 2 code. I also have 2 pending codes: P0303 Code - Cylinder #3 Misfire code and a P0171 System Too Lean (Bank 1). Any help I can get would be wonderful. Im almost positive the cam sensor code and system too lean was thrown because of the misfire. I just need help figuring out the cause of the misfire, so any help is good help.
