Hi there everyone, just wanting some advice if possible. My SC430 has an engine warning light and is currently in limp home mode - essentially little power and chews through petrol. I recently sent it to a jap car specialist that fitted most of the mods and on their tester the fault cleared and they felt all was ok. I had previously had it tested by Lexus in Glasgow who suggested it was a knock sensor fault. The jap car specialist felt it was not a knock sensor fault and just needed to be run on the high end petrol.
The car is now back and the warning light is back on and we are limping around. I have a couple of questions / observations. I have read online that you can splice the faulty knock sensor wiring onto the good sensor - personally not an option for me as I am not keen on messing with the wiring. Another option is to have the knock sensors replaced - I have also seen online where people have done this and the issue hasn't been resolved.... The car had been sitting unused for a few years so I am wondering if there is sediment in the fuel tank and running ten tank low may bring on the issue... any thoughts or advice?
Also on a separate note, anyone having luck with OBD readers on imported sc430's as mine just won't connect.
Thank you for taking the time to read this!