Help! KA24DE wont pass over 4000 rpm

[haxoraxe]

I had only 3 injectors about a month, and yesterday i bought one to fix it, i installed it and all 4 cylinders worked perfectly, except for one reason... every time i tried to step on it, it wouldn't pass over 4000 rpm.. sometimes it would but it would struggle a lot so it was like 5k rpm then pushing me backwards and forward and not doing good acceleration... I think it was like 11 sec to get to 60 mph.. anyone knows what could be wrong?

[roboticnissan]

Check your spark plugs. Bad injectors foul plugs really quick, then check your dizzy, cap and rotors, your spark plug wires, then your maf and air filter

[haxoraxe]

It could be the maf is dirty? i bought a chinese air filter since i had none and only had money for that

[ka4life87]

Yes dirty maf will definately cause driveability issues on ka

[haxoraxe]

thanks!! ill try cleaning and checking all