killerFatty

l would definetly put my money on the coil.

what do you think about silver rally strips on a black ls400

the ect pwr button makes the ecu make the fuel/air ratio richer

I also had this problem with my 1993 Ls400 and the only hard part was finding a tiny screwdriver. Once you get the screw out gently pop/pry the cover off and remove the battery. 1216 is the battery you need and I got mine for 4$ and change at batteries plus. Extremly EASY. good luck. :D

what about fuel additives. I hvae had some mixed results myself but was wondering what you guys think

I have mine at 32psi which is recommended for my 93 ls400 but it seems awfuly low and my tires are rated up to 40 psi should i go up to somewhere around 36 or 38?

does anyone know????

I have a casset stuck in my 93 LS400 and was wondering if there is any easy way to get it out. when i hit the eject button it moves a little but not enough to grab. thx

Stay OEM.

I just ordered mine from Carson, they're on their way! ~$120 shipped

I'd also recommend Denso Iridium LL plugs. (SK20R11) I ordered from sparkplugs.com ~$80 shipped

which wires did you get the only ones i could find are $151.94 plus tax and shipping?

come on! does anyone know??

I was wondering what diameter wiers the LS400 uses and which ones would are reccomended and what should i stay away from?

You can throw parts at it and probably fix it, but my response is always to diagnose, and fix what's broken. A good scope and a technician that can read it will find the problem quickly.

ok I will have my michanic scope it and ill get back to you. thx

Transmissions don't cause misfires. It sounds to me like you have a bad ignition wire or two. Remove them and inspect for cross-firing, and if some are bad, replace with a factory set.

You may also have a weak ignition coil. Best idea would be to have the ignition analyzed on a 'scope.

do you think a good tune up would take care of it?

Hmmm, mine never does it when trying to pass. I talked with a transmission guy and he said there might not be enough fluid or it might need to be flushed. The autozone guy said to replace a transmission fluid filter on bottom? it was like 45 bucks. i'm going to flush mine and replace that filter and hopefully that will help.

my machanic said it might need a transmissionfluid flush so that might help and I'll definetly get the filter replaced. thx for the advice.

I was wondering if a short ram intake for a 92-95 SC400 would fit my 93 ls400. The motors are the same so i don't see a reason why it wont but i want to be sure before i buy anything. also if anyone knows of any other kits for the LS400 please let me know. I have not been able to find one that is acctually made for the LS400.

http://www.injenairintakes.com/

It spputters when i accelerate from a stop or when i try to pass and accelerate but not when I'm just cruzing.

fuel filter probably isnt ur problem.....check engine light on? when was the last time u tuned it up? how many miles are on it? give more info please

Check engine light is off and it has 175K. It hasnt been tuned up in a while but i was thinking about doing that soon. do you think thats all it needs?

When I accelerate the car spputers and I'm wondering what I can do to fix it. I was thinking maybe the fuel filter but thats just a guess. does any one know what to do? THX

Hi guys I have a 93 LS400 and my trac light stays on all the time. What does that mean and how do i fix it?? any advice would help thx.

Thanks for the tip.

FYI - The '91 LS400 takes a CR1216 (3V). $4 at the local HW store (they did not replace it for me.)

- Dan

I hope this is not a dead post but does anyone know if that is the same battery as the 93 LS400? I have the same problem.