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  1. 1

    1993 LS400 Idle / AFM

    Hi Gloverman, I would like to take yours. Please let me know how to handle payment and shipping. Maybe PayPal is the easiest way. Many thanks and best regards, Martin.
  2. 1

    1993 LS400 Idle / AFM

    Hi, Did a quick search on what is available: 1: -50142 https://www.ebay.de/i/172883923040 2: -50140 https://www.ebay.de/i/182679902129 3: -50141 https://www.ebay.de/i/171296581065 Which one would you recommend? Best thanks, Martin.
  3. 1

    1993 LS400 Idle / AFM

    Hi Gloverman, Good to hear from you! :-) So now I know what I should look for. Many thanks! If you have a spare part in stock which you consider to sell, I would also appreciate buying one from you! ;-) Very best regards, Martin.
  4. 1

    1993 LS400 Idle / AFM

    Any help??? Thanks!
  5. 1

    1993 LS400 Idle / AFM

    Hello again, back from vacation parts from US arrived, but no news at all, still the same problem. As I am expecting now that the ECU is shot, I would appreciate a hint which ECU's are interchangeable, as I cannot find one with my original part number: 89661-50160, are there any other ECU's...
  6. 1

    1993 LS400 Idle / AFM

    This is what I am going to do, I ordered one in the US now. At the weeked a friend of mine, he works at a sattellite company and is a very good eclectronics specialist, is soldering in the new Caps for the ECU. I will be on Vacation from this Friday on, but will keep on posting afterwards...
  7. 1

    1993 LS400 Idle / AFM

    Hi, After I got back from work I did some more 'leakage research' - no air leaks found by spraying all the hoses and flanges one by one with break cleaner, but I realized that it does not make a difference if I pull out the big hose of the AFM or if is tight on the tb assembly. Also if leave the...
  8. 1

    1993 LS400 Idle / AFM

    Hi, You are absolutely right..! I will never touch an AFM again.:) I will search again for air leaks in the areas you described. Do you have a safe method finding them? I use break cleaner and spray the parts I 'test'. Between which ports are you measuring the frequency, what shows you a good...
  9. 1

    1993 LS400 Idle / AFM

    Hi Gloverman, I have a small Oscilloscope and a Multimter with a Hertz - Meter. Yesterday I spent half a day tracking down all wires from the engine compartment to the ECU and to other elctronic parts such as the TPS, ICV, no Error on non - Continuance at all. Could it be that the second...
  10. 1

    1993 LS400 Idle / AFM

    Hi, I checked the ECU, all capacitors looking fine. Also checked the ECU Temperature sensor, it is within spec. Best, Martin.
  11. 1

    1993 LS400 Idle / AFM

    Hello, Thanks for your reply, I disconnected the battery for several times, also overnight. It didn't help unfortunately, after starting the engine the CEL comes back on every time. Best regards. Martin.
  12. 1

    1993 LS400 Idle / AFM

    Hello everyone, my name is Martin and I am from Germany, reading on this Forum for quite a while, I decided to get active due to a tech. Problem on my LS400, I hope there is some help here as this seems to be the most qualified Forum, great! Problem is as follows. On a big service on my car I...


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