today i tried cranking my car and it wouldnt crank it said engine power reduced on the panel where it shows coolant and oil life. this is the 3rd time it happened to me i took it to auto zone to scan the code and it said P0651 or P0615 not sure which on it was

 

P0651 5-Volt Reference 2 Circuit ECM, PCM

 

A bad reading from a MAF will cause the car to go reduced power. Another one that will cause it is a throttle body not fully closing properly.

 

what would make it no start tho? i turn the key about 5 times and it just sputters then ill leave it sit for a min and then it will crank right up with a CEL