Carus

It has been stiff fir a good while it is my project car so I work on it when I can but I have adjusted the tps and throttle cable i will check out the spring hing thank you for the suggestion

My 94 ls400 is having a her high pressure on the fuel peddal. And I'm mean very high to the point that I can maybe push the peddal a third of the way down at the most. Also my engine is a bit sluggish on take off and takes a bit to build speed. I have changed tps, maf sensor, efi relay and having plugs and wireset changed in a couple days. The Trac light is the only light that comes on have you several code readers but nothing comes up since I repalced the tps sensor

Thank you I will also check this out asap.

Well I'd get a code reader or go to an auto store that will do it for free for you. That info could be helpful. Some older models allow you to get codes with just a piece of wire and they are displayed in the dashboard message centre. I wouldn't run out and change fuel pump and filter just because. I'd go buy a fuel pressure gauge from Harbor Freight tools for $10 and measure pressure. For $10 tool you may find $200 fuel pump is ok. If car was sitting that long maybe the injectors are dirty. Perhaps some injector cleaner fluid in next few tanks of gas might clean those out. . Thank you for your advice I will most definitely try what you suggested before I decide to put it back in shop

I don't have any equipment do read codes that is a soon to be bought item. I have had the plugs and wires replaced. Have been planning on replace fuel pump and filter soon the car sat in an impound lot for 2 years. Also I have had the temperature coolant system worked on in the last couple of week the coolant pump was also replaced. when I bought the car I had the timing belt replaced. does that help some

I have owned my 94 LS400 for a year now. It has recently developed a few problems that are giving the mechanics in my town a fit. First it started as my car not being able to get past 2k RPM's sometimes as in if giving it enough gas from a dead stop to make a turn into traffic, so not much at all, and if going down the road at any speed and laying on the accelerator to gain some fast speed i.e. to pass somebody, at this time the TRAC light and check engine light come on . Second after the car has been driven and gets up to it operating heat my acceleration from a dead stop takes a good 15-20 seconds before it really speeds up past 5-10 mph. I have only one mechanic in my area to try before I break down and take it to the closest dealership that is 2 hours away. I you Guys have any ideas please help. If given any advice I would greatly appreciate it.