d15b7 starts but backfire

[tenzo]

i just droped a replacment motor in my ex coupe a d15b7

heres my problem the car idels perfect and sounds good when revving but when i put it in first it starts backfiring from the intake manifold ?!!!

whats causing that?!

iam running p06 ecu ex wiring harness z6 throttle body a z6 injectors and fuel rail.

help anyone?!

 

[L.D.Forget]

the b7 injectors are 190cc and the si/ex injectors are 240 cc. With that ecu and the ex injectors your flooding your engine.

 

[tenzo]

ok but it idels real good and i gas it and its good no back fire.

but once i start rolling it back fires.

i used the p28 but it was still doing the same?!

 

[1993hatch]

I honestly don't think there's a problem with it, unless its a personal problem. M car has a intake, and exhaust in it and it backfires in first and second gear, sometimes third when i rev it high. it's just extra fuel