There are now blinking lights on my ecu, does this mean that there is nothing or something wrong?

 

Is the check engine light on?

 

comes on and off and my car jerks and then stalls

 

bad ecu

 

not even..... loose ground wire in the engine bay all the way... check it my friend... only other thing could be a distributor problem

 

well, i know that my battery cables cant be tightened all the way, so they are a little loose, but i do need a head gasket which could it be

 

head gasket has nothing to do with the car staying on... neither does your battery cables being loose as the car is ran by the alternator once the car is on... the cables just need to be tight so you have no problems starting the car. If you have no light on the ecu that means you have no codes... if the car starts and runs with the ecu.. chances are the ecu is good and you have a loose ground wire... the one that grounds on thermostat is my guess. check all 3

 

makes sense about the thermostat ground since ive changed the thermostat just before i parked my car for 1 1/2 months because of overheating