lexusflex

I have a 96 SC400. I have been having trouble with it being very sluggish at low rpm.Between 1k and 3k it acts like it don't want to go anywhere. When I originally bought the car it had a random misfire. I started combating this problem by changing the spark plugs, wires and distributors and caps. It was only misfiring on the odd side then. So, I replaced the coil. That seemed to help the misfire, but car is still extremely sluggish at low rpm's. Anyone have any ideas what could be wrong.

ihiryu

iTrader: (7)

did you replace the rotors? How did the spark plugs look? Sometimes the cam will eat a spark plug wire.

lexusflex

Yes I replaced the rotors. The plugs looked fine, but they were some sorry brand. I put the iridium NGKR's in to replace the ones that were in it when I got it. I have also replaced the stock cats with MagnaFlo high flows. I didn't replace the O2 sensors yet. Plan on replacing those next. Thanks for replying. I was begining to wonder if anybody was out there!LOL!

ihiryu

iTrader: (7)

make sure you check the tps too. I hate to say it, but when it comes down to something like this; is to replace as needed.

ScottURnot

iTrader: (33)

When you say sluggish is it just when driving or reving the motor in neutral too?

lexusflex

It is only when driving the car, mainly between 1k and 3k rpms. I haven't checked the tps. That is a good idea though. It woud explain why it is getting to much gas but I am not sure if it would explain the random misfire on just the odd side. I will check it though. Thanks