Post by
ThisIsSparTTa »
https://forums.nicoclub.com/thisisspartta-u210180.html
Fri Mar 14, 2014 6:29 am
Power balance test is best place to start, pull the coil pack connector for each cylinder, one at a time while the car is running. If the engine sound changes, you're good. If nothing changes, that's your dead cylinder. Then you need to check for spark, check your injector clicking, check the ohms on the injector etc. Another common problem is the PTU subharness. If it changes the idle or engine dies when you move it, it can be a problem.
However, I've been running on as few as 3 cylinders before (as I was moving my car to replace the old style injectors), and I've never seen the CEL for that.
Finally, you should pull your ECU codes, I'll let you search on how to do that.
Make a new thread once you've done that so we can keep issues separate, and also hopefully get more people to look at your thread.