Dan1

check your sparkplugs for a brown ring

that sounds very expensive,, is there any other parts that need replaced,, eg on my old bmw the rear bearing needed replaced but it also killed the abs sensor, trailing arm and even the driveshaft!!! I fixed it then the cat went so I scrapped it!!

mine are in excellent condition, but at that price I might invest in them!! they are usually £95 plus a side?? so thats a bargain they must have bought them in bulk

oooooh me try that then.... watch this space.... Pete mind you though,,, I have noticed that every car Ive fitted one to uses more fuel even after re learning the ecu!! has anyone else experienced this???? ,, I thought that more oxygen in the system requires more fuel,,, ok for higher bhp but I think ittl harm your mpg,,, the only benefit I had from mine was that it didnt have to be replaced ,, just cleaned and oiled,, just a thought, I might be wrong as havent put one on a lexus

well I swapped the car with a rover 216 coupe ( crash damaged) as you know,, the guy who i swapped with was in the motor trade and had a lot of mot tester friends,,,,, he thought he was giving me a car that he could not fix ( in regards to economical value, eg repairs worth more than the car,,) I feel great that he didnt even suspect the ignition coil,,, I know they had been looking for the problem as they numbered the leads,,, but they didnt have a good look at the car!,, I feel great,, but I couldnt have done it without everyones help so thanks a lot!! :winky: next things to do!,, change oil and filters, clean off abs sensors, clean egr valve to help lower smoke,, basically it needs a good hard run up the motorway, but i have just lost my job, so ittl have to wait until I get it insured,,, Its moted so once taxed its ready to drive!,,, even the power steering has been fixed,, I have a good tip for all lexus owners with the power steering problem,,,, I used the old washer,,, but made my own rubber gasket using a square patch of bicycle innertube with a hole in the middle,,,,,, it works great! it has sealed the gap purfectly as the pressure from the bolts has sealed it.. and if a new o ring was fitted it acts as a secondry seal to protect from leakage! the coil was only a tenner so it was a cheap fix the car is smokey as been on drive for a while and the engine was flooded due to running on 4 cylinders,, might even be water due to heavy rain ( steam),, but Ill sort that, I got a gunston compression tester today,,, but its running so well that Im not going to bother testing it! it sounds like a mustang,, I have just got some 15w - 40 duckhams oil ( thicker vilosity to help with higher mileage engines) ill try send u some photos if you give me your email address as Im not sure how 2 use this site yet<<,,, anyway thanks again and when Im doing other odds and ends Ill let you know what im up to! Dan

good news, the mr2 coil is working great,, the engine is running like is should, but I need to change the oil as its diluted with petrol as it wasnt running proper,,, thanks guys for your help,,,, also the power steering is working proper

I have swapped round the coils and im sure that one of the coils have gone,, I swapped round the igniters and they are ok so I put them back,, I ws wondering ,, does the serial numbers matter on the coil as there is one off an mr2 at the scrapyerd that is exactly the same 12v but different serial numbers,,,,, the connections are the same too!

Hi again, im beginning to be a pest with all my questions,, anyway, does anyone know where I can get a code reader for my 94 ls 400 I have a obd2 reader but I dont think it will fit,,,,, :shutit:

Hi, I think that it would be a very good idea to put some tutorials an this site that are not covered by the others, eg, more in depth in more complicated faults, eg electrical, fuel systems, abs systems etc etc,,,, just a suggestion,,, what do you think??

Im pretty sure the ls has a egr valve, it has a filter in the top that should be cleaned I thunk,,,, but i would replace the pcv valve ,,, anyway see the following site www.lexls.com-tutorials

I will keep the post up to date as this seems like an interesting topic for lexus owners,, :winky:

hi again,,, I have had a good look at the car and noticed that the problem was only one dizzy is working properly,,, the drivers side one is completely dead,,,, i swapped over the coils and there seems to be no spark,,, is there any other way to test the coil??? also do you think that the rotor arm may be at fault,, or even the dizzy,, cheers,, any advice will be appreciated,, Dan

thanks for your advice

hi, thanks for that excellent info pete,,, when I fix the car up I was thinking about covering some of these things in a diy tutorial as these are not mentioned very often,, hopefully these posts will help other lexus owners with their car problems,, thanks again,, dan

I have ( think) traced my running prob to the top coil / or maybe even the left dissy?? was thinking I should get a coil and try it/? does any of you experts know if any other cars have or share the same coil,,, also does anyone know/ guess what the compression reading for an ls400 with 110k on the clock?? thanks guys :shutit:

put power steering pump back on and it made some noise then stopped,, seems ok but Ill know for sure when I take the axle stands off and pressure is on the wheels!! anyway does anyone have a rough idea what the compression readings should :winky: be?? also I have noticed that no sparks are coming from the left top coil,, maybe thats the running problem hopefully

thanks

hi guys,, thanks for your advice,,, I will get a compression test done first,, been busy all day fixing the neighbours cars a rover 216 and a 02 1.4 focus,,, both have the same running problem,, I did a diagnostic on them and it must be dodgy fuel as the sensors are jumbled,,, just a co incidence or what, its prob just an unlucky day,, they both use the same petrol station!! , one thing for sure,,, Im not going to the same place for my fuel,,, yeah, ill put the pump back on and flush it,,, i might add some stop leak to smooth it out,,, the car has a long mot, so I could just get it running and sell it but im now addicted to the v8 and feeling of importance whilst driving the car,, ,, the compression testers are only £8.99 plus £4 odd p and p,, so its not gonna break the bank,, Im looking forward to finding out whats wrong,, in fact i actually want the engine to need a rebuild as I can upgrade it to my liking,,,, you could get mega bhp from that engine,,, I think its ok though as its only done 110k and has recently passed an mot so emmissions cant be too bad?? I will keep you up to date on it anyway,,, I wish i could add some photos. cheers Dan also would anyone know what the compression readings per cylinder are for future reference?? a 100% reading or a 70 - 80% approx reading depending if you have access to a manual/? eg manual will give manufactures 100% reading but unfortunately every engine has a different reading even when brand new!,,

I think that you should use only the best fuel in your car It may be expensive but I think its worth it, . also you might not notice this but sometimes if you add redex it can thicken you fuel and it might be a bit smokey and juddery,,, every car i have had has done this when redex was added,, should go away after about 200 miles, I normally use the cheap fuel on my mercedes and thats ok,, but I havent had the lexus on the road yet as its still being fixed.

Hi, as you may be aware, I have recently started my new project,,, I have had a better look at the car and have noticed the following,,, took power steering pump off due to grinding noise,, had a look inside the pump and it looks ok and the shaft moves smoothly and there is no atf coming out of the weep hole so now I think a flush and some stop leak in might quieten it up,,, I will get a new resivoir o ring too. alternator is fine thank god! took off throttle body and noticed that last person to work on the car connected the inlet hoses loosley!! I then cleaned off the 3 mm thick black carbon build up and made a new gasket th fit on, checked the plugs ( quick visual check I will test them properly when I get my compression tester on ebay) anyway I found the following,,, left hand side of engine,,, 2 plugs very rich,, 2 plugs dont even look like they have worked ( plus have a brown line on bottom of ceramic,, maybe a leak.. right passenger side of engine just the same,, if its only running on 4 cyl im very suprised that it drove let alone started,,, I have not tested for a spark yet as rather than waste time Id rather just buy new ones and new leads. so I would like to pick everyones brains and ask some questions,, * is it worth re installing the p/s pump and buying fluid to flush it??, the pump looks fine and has no visable defects that I can see,, or should I just get a new pump? do you think that Im right in saying that the plugs must be leaking thus causing lower compression? or do you think that the valve seats may be worn due to anyone using leaded petrol in it?? Im asking that question as when I ordered some spare parts the shop asked me if it ran on leaded or unleaded??? It has 2 cats though so I dont think its been on leaded what do you think the best course of action would be for my project ( no scrapyards please) i have heard that there is a product called amtech restore on ebay and it looks convincing,, I have tried it on other cars and it seems to be ok,, has anyone else tried it to increase compression??? or would you recommend anything else? anyway, thanks for reading my post and wish you all the best with your cars,,, especially when the parts arent cheap,,, Dan

I suspect that my power steering is knacked so Im looking for a new one,, problem is,,, none in my local breakers,, does anyone know if any other toyota ps pumps fit a lexus ls 1994?? thanks

hi everyone, my project ls 400 is starting and i need some advice on it,,, please no petrol and matches :winky: , i need a power steering pump,, maybe you have one for sale,,, plz let me know!!

hi again,, I have took off the pump and cleaned it,,, i might still try a new one anyway as I have no method of checking it,,,, i have cleaned about 4mm of carbon crap from the throttle body!!!!

sorry im a bit thick, and rather new to this site,, anyway I was wondering how you become a gold member on this site??,, maybe pete knows this one,,, any comments would be appreciated,, thanks

my cars Ive owned and im only 22 yrs old!!,,, 1998 Ducati 998 1989 audi quattro,, superb but was on my drive since I was 17yrs old as could not insure it!! 1997 vW Polo 1ltr crap as clutch went at 30k miles,,, was great on fuel I got from newcastle to london on £20 in petrol once!! 1998 ducati 600 supersport 1994 ford fiesta 1990kawasaki gt750 1992 bmw M5 1994 vauxhall corsa absolute crap 1995 corsa 1.4 auto... still crap 1996 ford fiesta 1995 seat toledo deisel 1994 mercedes c class one of the best cars I ever owned 1996 bmw 316, nice car but cat and rear trailing arm went so got rid# 1996 Rover 216 cabriolet showroom condition superb. 1994 Landrover discovery excellent would recommend but heavy on diesel 1996 hyundai accent coupe very reliable but needed too much work for mot 1996 Ford mondeo, good car very reliable but flimsy built 1997 Rover coupe 1.6 in excellent cond ( was first owned by michael owens wife) I swapped the rover for my new lexus. another mercedes c class ( on the road now as lexus being fixed up as project Lexus ls400 1994 current i have had a lot of cars for my age and i have had even more than this!! but Im sure I have missed lots out!! I love my cars,,, well except the crap ones,,