HELP!!My 240 lost power.

[SleepyAsian]

Hello forum!
I have a 92 240sx Ka24de and Last week it was running fine and all of a sudden my car has half of the power it used to. Like I steep on the gas and it barley gains speed. The car idles really high and the motor shakes worse than before. Also If i unplug the 3 cylinder injector nothing happens versus if i unplug 1,2,4 it boggs down like normal. Also my car doesnt have egr stuff.

Could my injector be bad?? I have had happen to my car again but It was on the 2nd injector. So Idk

What I have done to car trying to fix it.
New Fuel pump
Switched MAF out with friends
New oxygen sensor
New Fuel filter
I though I had a vacume leak but I have covered all that and Im good.


Help please!!!

[Encryptshun]

My guess is either the plug, the injector, or the coil pack.

[guitargod240]

most likely 3rd injector i just did mine few weeks ago cuz of same thing lol....good luck man.

[JamesBroChill42]

I also think its your third injector, check the wiring/injector. If it was the injector that would explain why when you pulled the plug nothing happened. There would be no fuel for the plug to ignite anyway.