I have a 01' malibu that turns over but wont start. I was driving it pulled over to go into store and came back out and it wouldn't crank. I have checked codes and it is as follows: U1040, P0103 ,P0171 ,P0300, P0463 and P1189. I wanted to know which ones will cause the car not to start. P300 is for cylinder misfire. Does that mean my heads and ifso does that mean my engine is gone. Will the mass airflow stop it from starting? I need help quick just started a new job and it is not on bus line. Can I get serious replies pls no games.


Thanks so much for caring

 

https://chevroletforum.com/forum/general-tech-10/obd-p-code-lookup-22799/

scroll thru this list, you should find your codes

 

thnks, but i cant find the one for code U1040 and P1189. My question is can a mass air flow keep it from starting and the brake sensor

 

The cars turning over, so your not getting one of the three key things, Air, Fuel, Spark. Your prolly getting air.
Can you hear the fuel pump turn on when you crank the key?

 

Hello "U1040 means loss of ECBM Communication", "P0103 means Mass or Volume Air Flow Circuit High Input," "P0171 means Fuel Trim Lean Bank 1," "P0300 means Multiple Cylinder Misfire Detected," "P0463 means Fuel Level Sensor Circuit High Voltage," P1189 means Engine Oil Pressure Switch Circuit, thats alot of stuff, the Mass Air flow sensor can make a car from not starting, have you tried cleaning the Mass Air Flow Sensor with Simple Green by spraying the sensor and blowing it and letting it dry? its guaranted to clean the sensor and not damage it, clean it and if the car has the same Problem then replace The Mass Air Flow Sensor, you can get one from a Salavege yard at a good price.

 

Did you ever figure this out? I had the same issue---it was fuel pump.