Misfire

pickup
nissan

#1

on 1997 nissan pickup check engine light came on.code number 4 cyl misfireing any ideas.2.4 cyl moter.


#2

The straightforward place to start is with the spark plug & wires. Checking out the distributor or coil (whichever) is also wise. Next make sure the fuel injectors are actually firing. (Listen carefully & you’ll hear a click).

If simple things don’t take care of it its normally wise to check the compression to rule out mechanical difficulty before you go too far.