I have a 1992 eg hatch back with a d16z6 swap. The car use to run perfectly fine but after not turning it on for about a week now every time I turn it on it stays on for about 2 seconds but then it turns right back off the only way it stays on is if I give it gas to like 3 - 4K for about 10 seconds and while I do that the idle fluctuates but after that the idle is fine and it turns off fine for the rest of the day what can this be? I am using a P0B ecu If that has anything to do with it but I have always used that one thank you

 

Post the CEL codes.

 

The car doesn't give me any but when so turn it on it runs for like 2 seconds and then the check engine light comes on and the car turns off

 

When the engine stalls, don't switch the key to off. Instead, jump service connector to pull code.