My friend just bought a 92 300zx twin turbo. He is wondering if the injectors need are the problem with his car right now. The problem is that there is a hesitation and it revs really rough and not smooth at all. Is this caused by the injectors? If not do you have any other suggestions?

Thanks

 

go to my Link Page.
there's a link there with a plethora of possible reasons for hesitation.
have a look, you might find your solution there.

 

I had the same problem nearly drove me focken crazy. If I were you check all the ignitions coils is in good shape first. For some reason the boot of the coil on my Z got chewed up some way some how. So the voltage was distrubing to areas that didnt need it making it weak and not igniting the fuel. Fuel injectors should be the last thing that you should do. Let me know what you've done so far.