okay here goes i am new to the forum And I REALLY need some help looked over the net for a few hours and i didn't find any thing I replaceable a engine for a buddy in his cavalier z24 2.4 dohc 5 speed the reason for replacement was for timing chain breaking ok so here is the problem after every thing was all in and connected i reconnected the battery and the key was off i heard hissing from the injectors and they started filling the intake manifold up with fuel up to the trottle bodie so dissconnected the battrey and pulled the fuel pump relay still the same thing then pulled the injector fuse in side the car same thing again i pulled the plugs turend the motor over by hand and the cylinders are filled with fuel i am pulling my hair out with this thing i have never had this happen so if someone could help me it would be appacerted

 

Check for a pinched wire