monty_mm

thanks aarman4, at least now i can have a look at least at the wiring to the oxygen sensors to see if everything is ok before taking it anywhere. thanks again. will come back to the forum once i get any codes!

Hi guys, i've been searching the forum for a while to see whether i could solve my problem. My problem is that the check engine light came on for some time now. i dont know what the problem is and cannot tell since everything seems to be normal and the car runs perfect. i didnt send it to any repair shop yet to read the codes, i was wondering if anybody could tell me what could be the possible cause(s) since there seems to be no problem with the car. I read somewhere that it could be the fuel cap, i tightened it, removed by batteries to reset the light, and it came on again after a while. everytime i disconnect my batteries, the light would go off for a while and after driving for a while (maybe 15-20 minutes), the light will come on again. anybody any ideas??? would be greatly appreciated. regards, monty

Well nc211, to answer your questions: 1) the car doesnt wander at all, in fact i replaced my tyres completely 5 days ago (this was because my old tyres were really old), and balancing was done. i didnt do any alignment cause there is no wander. 2) no vibration on brake pedal at highway speed either. When i apply the brakes, there is no vibration and no humming, the previous owner put in new brake discs and never experienced braking problems. my ls has 115k miles on it so far, it runs like a dream, very very smooth and the engine is superb. This feeling only comes when i'm turning and its mostly when i'm turning slightly right at high speeds, i know its not from the tyres, and i feel the vibration at say once a second when i'm driving at around 50, so i cant say whether its related to the speed or not, and i feel thats its mostly from the driver side but i cant tell for sure. there is no slight wandering sensation in the steering either, but you have one point, there is a minor clunking noise when i go over bumps, very minor but i know the feeling cause i experience this with my 1990 LS more. do you think that is the reason?? and how can i tell for sure whether its the outer tie rods or the ball joints?? any idea on how much it would cost to repair for either?? thanks again

Hi guys, i love this LOC, i think its the best ever for giving everyone an opportunity to learn and educate others about the Lexus brand. its my first thread on this website, i just bought a 99 ls400 and love that lexus feeling. Heres my problem, only one problem to fix to get the car perfect. When i'm driving on the highway, i can feel on the steering wheel a strange feeling a kind of pulsing, as if there are two metals touching. Its a kind of pulse, and gets worse when i'm turning. when i say worse, its not that much and you really have to concentrate to the steering to notice. At lower speeds, i dont feel it that much, Theres no noise or anything, just a pulsing grinding feeling of two metals touching. i went to the lexus shop, they said it was normal but i know it isnt, my brother has exactly the same car and it drives like a dream. i dont think the lexus servicemen had experience to know what exactly was the problem. I hope thatt someone may reply to my thread with the perfect answer. Thanks.