my 98 Y87 is doing the same thing.......misfires like a bitch. it got real bad last week and its so jerky and when i go to accelerate you can feel the car shake and jerk ALOT and hear the misfiring. im going to get the plugs and wires done next weekend... a couple people have already told me that might be the issue....

any special plugs or wires i should be looking at, or should i just go to autozone? good luck with your problem, i hope we both get it fixed cuz its such a pain in the *** to drive right now, and its running so rich.. its insane how fast i went through my last tank of gas.

 

just get some autolight plugs, unless u are spraying or something major, and wires... i like msd but they are pricey... autozone has some accel or something like that, they will work fine. factory u have 7.5mm wires, so id sat go to atleast 8 mm.

 

o, change fuel filter while u are at is as well..

 

Also change your ignition coils, those can do it too...