Lxs &Toy ota Posted July 30, 2019 Share Posted July 30, 2019 Hi Community, I own a LS430 2001. For a couple days now I do have rough idle and the VSC / Engine Warning light. After my initial analysis I found a bad ignition coil Connection. After that was fixed the car ran fine for 3000 miles. Now the same Problem came up - Rough idle and lack of power in low rpm (in kick-down it seems to be okay) . The obd2 says ist P0401. I already swapped the spark plugs and the forward O2 sensors. But it still is Rough idling. I 'd appreciate any suggestions before changing anymore things? I wanted to swap the rear O2 sensors already, but due to the availability of these I my question is if they are the same than the front ones or is there a difference besides the connector ? Is there a way to check them? thanks for your help greets from Europe Quote Link to comment Share on other sites More sharing options...
Lxs &Toy ota Posted August 2, 2019 Author Share Posted August 2, 2019 anyone ? Quote Link to comment Share on other sites More sharing options...
Lexus Owners Club Posted August 8, 2019 Share Posted August 8, 2019 Hi Mark You could possibly ask this question through the UK Toyota Owners Club forums (same club but UK based members) You may get some answers there. https://www.lexusownersclub.co.uk/ Quote Link to comment Share on other sites More sharing options...
Lxs &Toy ota Posted August 13, 2019 Author Share Posted August 13, 2019 Thanks Admin, I'll do that. I dont understand the difference though. Are Brits more helpfull? Anyway, thanks Quote Link to comment Share on other sites More sharing options...
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