Boomsly

A week ago I noticed injector #4 was leaking a bit of gas. figured no problem it's just an o ring so we took it to the shop got it fixed now it runs terrible because it's only running on cylinder # 1, 3,and 4 you take the plug wire off 2 while its running and it doesn't change how the car runs my local garage couldn't figure out maybe yous can?

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'97 cav WIP

Tookie

Change #2 plug. Change #2 wire. Have you checked #2 injector's connection and functioning?
Might be a bad coil pak.

Tookie

Boomsly

The plugs were replaced just 2 weeks ago with NGKs ran fine for a week until the injector problem was found. The wires were tested as far as I know by the shop. and #2 fuel injector wasn't touched because throttle body was in the way and was working fine anyway. I guess I can check the plug just incase the shop overlooked that.

Eidt:
I just checked the plug and it had black crap all over the end (part where the spark ignites), it looked like grease. Would that affect it at all? other than the black grease being all over the end of the plug it looked to be ok.

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'97 cav WIP

deadBird

Black grease? You mean oil? Burnt oil?

Tookie

There is a failure somewhere between the coilpak and the end of that plug. Try cleaning and re-gapping the plug, reseating the wire, and an inspection of the related injector is in order.
The black greasy stuff is most likely an unburned fuel mix. New plugs can fail if the are dropped hard; or the insulator is cracked etc. Its also possible the coil end of the wire isn't seated properly.

Tookie