P2601,c1241,c1242,c1300,c1378

Car hasn't had engine light on since we purchased. Drove over 15k miles. This morning the light came on we went to AutoZone and these are the codes. P2601,c1241,c1242,c1300,c1378. I'm not sure if this is worth putting money into

 

Bad thing is it's raining, I'll check that in a minute. I find it strange to have all these codes at once. This is a 2005 about 87k miles.

 

Ok I hear the pump running for about 3-4 seconds in front of driver side tire then shuts down, then gas motor starts. I checked the voltage at the battery, getting 13.8volts.....about 6 months ago the car was completely dead, I found the ground cable at the 12v battery very loose on the chassis. I tightened it. Jumped it, been fine ever since

 

I checked the ground wire at the 12v battery on the chassis again, it was loose and sparking. Tightened again. Took off negative terminal for 3minutes. Drove the car 60miles and check engine light has not come back on. So far so good...