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Misfire

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

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.