Possible injector problem?

[Seanie]

Mkay.. I have a bone stock 92 240sx.

I just changed the wires, plugs, cap, and rotor.

The wires are delivering the spark (zapped me :ow:), and the plug is good. Injector maybe?

Any info is greatly appreciated.

[pmkls2]

you really didnt explain whats going on tho, is it running at all or just missing ?

[Seanie]

The car runs fine, but shakes alot and has no power.

If I unplug the #1 plugwire, it runs exactly the same as when it IS plugged in. There is no black smoke coming from the car (like if it was running rich), which I assume would be there if the cylinder was getting gas but no spark.

At 25+ mph you can barely tell there is a problem other than the lack of power, however, once you come to a stop or slow down much the car idles rough and shakes a bit.

[pmkls2]

well, do you have any access to any tools such as a noid light or compression tester ? If you have spark and it runs then you know the timing chain is intact. Your options are a valvetrain failure of some sort, blown head gasket, or burned piston to cause a loss of compression. Or you have some sort of failure resulting in no injector pulse. You really need to test for injector pulse and compression then that will lead you in the right direction. you may be able to borrow a compresion tester from autozone but Im not sure

[DAEDALUS]

More likely the injector than the harness or signal. Measure the injector resistance first. Just takes a minute.

[xekushnr]

definately sounds like an injector. like daedalus said, get a multimeter and measure the ohms across the resistor.

[Axel Grungy]

sounds like you have a clogged injector. if you say you pull out the number 1 plug wire and it runs the same, it will be that injector. or you can take a screwdriver and listen to each injector to figure out which one it is. pull out and replace. hth