hey all,
well as mentioned in an earlier post, i just changed the plugs, oil, air and fuel filter in my mom's 4th gen. now the car seems to shudder, especially in drive. the rpm's drop for a second and the interior lights flutter in conjunction with this. the computer isn't spitting out any codes and I've been searching through the posts, suspecting it might be a coil pack, but haven't came up with anything yet.
EDIT
just found a few similar circumstances that make me almost sure it's a coil-pack not being on right, I'll go out and re-seat, but any tips on doing it right are welcome.

 

What plugs did you use?

 

what yr is it? 99 max are known for their coil packs to go bad.

is the gap on the plug/plugs set right?

 

Did you re-connect everything properly?

This is what happens when a 3rd genner works on a 4th gen. . . .

 

it ended up being the plugs, picked up some ngk iridium's and she is purring. shoulda bought them the first time around. thanks for the help all. I'll stick to the VG till I muster the cash to get one'a ya'lls fancy 4th gens (cause it'd sure be nice to not have to change the timing belt next week).
on a side note, anyone know about those ngk-v plugs, the guy at napa kept telling me they were the best bang for my buck

 

On my 5th gen today I broke a coil pack and the car was shiiiity. As for plugs I'd stick to the NGX platinums they work superb. Anyways Im screwed because I have to now replace a coil packand all the wiring. So becareful!!! Take your time when replacing the VQ30's plugs.