so im stumped. we put this hatchback together and got it running but now once the car is warm it will die if you press the gas. while its cold you can start it and rev it up no problem but once it gets to operating temp and you try to press the throttle it just bogs and dies.

it is a 97 civic hatch with a d15b7 block and y8 head. new head gasket,water pump,timing belt,fuel filter,spark plugs,injectors,spark plug wires,O2 sensor also. running a step down and p28.


if anyone has any clues let me know because im stuck!! any help would be greatly appreciated! thanks guys

 

Check the fuel pressure regulator.

 

i didnt check it i actually replaced it with one that i knew was good. but ill double check it..

any other ideas guys?

 

Is the vacuum hose attached to it possibly leaking?

Is the CEL ON?

You also might want to check the fuel pressure, the coil and ICM, and the MAP sensor.