Well, Im tired of throwing parts at this car...All I was trying to do was clean out the EGR valve tube this weekend...and replace plugs...and everything Ive done seems to have made the car worse...

Ive installed a new wire set (Bosch)
New plugs(Autolites, and NGKs)
Ive moved back to the original plugs in hope of a return to prev perf....

And a new EGR valve(OEM)

And I just test drove the car around the block and barely made it back.

There is no acceleration and hard shifting. At idle(park), its fine, but when in rev or D, it drops down to around 500 RPM, and when turning the wheel, it makes the belt squeek and lose power steering...

Anything anyone can suggest would be helpful. I have reseated the plugs, and checked them...they seem to be fine...I tried to clean out the EGR tube as best as I could, but maybe Im making the problem worse? by loosening up tthat gunk? It did get worse after I tried to clean it out...I used a wire, just trying to get some of that stuff loosened...

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1994 S320
131K miles

1998 ML 320
126K miles

1994 Blue C220
122K miles

Im going to Grad School @ the University of Iowa
Go Hawkeyes!!!