Lextasy4

Thanks for the info.

Another great Magnaflow muffler that is a little bit more expensive and comes with the tips included is the 14829. It is a street series high performance muffler and it sounds excellent on the SC400. I highly recomend it with 2.25 inch piping into a magnaflow x-pipe then back to the mufflers, eliminating the 3rd cat and the 2 resonators. There is a couple videos at youtube.com just search for sc400 exhaust. :) 2 thumbs up.

I have a 1992 Lexus SC400 and the idle control valve went completly dead. No idle at all have to have foot on pedal no matter what or the car will die. Part from Lexus is $574 plus $156 installation. The part number is 22270-50010, and I have found this to not be right for the 92 SC400, I have been checking for used valves as to save money. There are two on ebay for $100 from a 95 SC400 and a 90LS400 which both have a part number of 22270-50020. Does anyone know what vehicle the 22270-50010 is off of? Also would the 50020 fit? Thanks. Also, I posted this in the new model section I think. I didn't realize there was a different section for 92-00. Sorry :)

Update: I removed my coolant level sensor(coolant seems to be seeping out from under it when very hot). The o-ring looks to be in good shape. The orange floatation device on the coolant level sensor is cracked all the way through but looks to me like it would still work fine. I filled up the coolant to overflowing and light still lights. I am assuming the crack in the floating part of the sensor is causing it to be bad.

Thought I would put my $.02 in on the LSD issues. I have a 92 SC400 and experience the same thin you guys are talking about. Many times on straight both tires will spin and my car will actually start to slide. Then again on turns it is only one tire and sometimes going straight it is only 1 tire. It seems to me like a very week LSD but I am sure its not LSD. With my car jacked up only one wheel spins. But at least sometimes you get two wheel action :)

Ok so I checked my coolant right after driving for about 30 minutes and coolant is bubling up from where the sensor is located. This could be because I added to much coolant but it still should not bubble up from under the sensor. Would replacing the sensor fix this?

My 92 SC400 has a "one wheel wonder" that I would like to get rid of. Do you guys know of a bolt on LSD rear end that is completly compatable. If im not mistaking LSD was an option on the SC400. Anyone know where i can get the LSD rear end will it just bolt right up? Thanks.

I have a 92 SC400 and the damn idiot light to fill up the coolant always comes on. It comes on guaranteed if i drive the car long enough to get the coolant fully flowing. The light means that you need to top off the coolant however my coolant is completly full and does not need any more. I have checked several times and it is always full. Any ideas on this? Bad sensor? Problem in coolant system?

Ok i did my check on my A/C and got code 23 which I already know what that is and code 41. Does anyone know what code 41 means? Does that mean I need a new compressor? Cause a shop had told me that I need a new compressor. Thanks

Any more news on this, I would love some headers for my 400 :)

What if he wants to take his car to a drag strip and with that 12 lbs of boost possibly trapping over 119 in the 1/4mile....I say go for it...just dont kill yourself. My SC400 reaches 150 easy so I dont have that problem :)

Can you get JIC Bullet Spartan(dual) for a SC400??

When I bought my 92 SC400 the sub was missing from the vehicle. I have a Alpline head unit and am looking for a sub to fit in the whole. For a while (prolly a year or more) I am not going to get a amp just run the sub to the outlet n the deck and have only the 50 watts going to it.. also i need to replace the 2 back speakers. I would like to know what type of speakers would be the best. keep in mind they are only going to have 50watts a peice rms. Thanks

1992 Lexus SC400...150 mph on interstate at about 1:30 am....smoked a Dodge Neon SRT4 :)

The owner's manual is from 1992 and gas is more refined then it was back then...91 octane back then was not near as good as 91 is today.

I had this problem also in my 92. The coolant light came on and stayed on for a while(like 40 miles) then started turnin on for a few minutes then off...it has finally seemed to stay off for the most part but still comes on occasionally. I checked the coolant when it first came on and it was fuller than full. I recently changed struts and power steering rack....dunno what would cause the light to come on :(

Premium = 93, Mid Grade = 91/90.....i dun wanna go down to 87 and possibly cause engine ping.

I know that the SC's require premium grade gasoline. But since 1992(year of my sc) the gas has gotten a lot better. The SC's compression ration is only 10.1 to 1. My friend runs mid grade on 11 to 1 compression ratio. He tells me that it wiould be perfectly fine to run mid grade in my SC. Is this true? The gas prices here just jumped 30cents a gallon and I am considering this option. Tell me what you guys think. What do you all run in your early year SC's?

I have a 92 with 180k miles on it and the compressor is dieing, will no long blow cold air, barely takes any freon. When it does get enough for the compressor to kick on it is real loud and does not blow cold, so mine needs a new compressor. Check to see if your compressor still works this might be the problem.

Does anyone know where I can pick up just one of the factory 16inch 10 spoke chrome rims from the early sc400s, I am journeying to college this fall and a spare is definitely needed for the long trips. Thanks :)

It could be your lower control arm bushings as well.. this tends to make the wheel jerk or move at every bump if they are shot

BTW dealer tried charging me $557 a peice for lower control arms, psh.

Will install the bushings my self should not be too much trouble at all. The sets for 99.95 are for ONE side of the front, you need the front left and the front right to complete the job.

I just bought 2 lower control arm bushings off ebay. $99.95 a peice 7 bucks shipping. http://cgi.ebay.com/ebaymotors/ws/eBayISAP...TRK%3AMEWA%3AIT

I have 183k on a 92 SC400.....bought it with blown headgaskets(176k) and put a 50k engine into it... so now i have about 57k on the engine. Just replaced the struts that were still original, lower control arm bushings(shot as hell and original), rack and pinion(started leaking out of right boot), and thats the only major things, def. need a paint job tho