Urgent Help

[Macoboy]

big problems with my nissan skyline r32 gtst

first prob i started with was the car was miss firing, couldnt go over 2300 rpm, we changed plugs, coil packs

then we changed the gtr injectors to stock r32 injectors which improved the car a little bit

then the problem started to come back

then we thhought it was the link computer playing up so we changed it back to the stock computer

then it started to run fine till i cracked a piston, this all hapened in a month

got my computer sent away to see if there was ne problem but it was fine

wot could be the problem????

could it be injectors failed???

could it be cams??

please msg me if ne one knows what the problem could be

thanx Michael

[toffy]

a hole in a cooler pipe?

[Macoboy]

but is that enough to crack a piston?

[blind_elk]

2300 rpm limit is usually a sign of a cactus AFM.