TomCec

On my Lex is220D (engine 150K) got code P1238 in pending. Car sluggish and misfiring. Thought it might be EGR inintially as they are prone to it getting carboned up. Put into tank 500mL of Wynn's G (Gold) which is about half the cost above BG245 but essentially the same stuff. Ran it on load and idle for a bit, you will see puffs of blue'sh smoke coming out, now runs a treat.

TyroneVeron here (the taxi guy) is spot on how to clear the VSC+check-engine warning (limp mode) on my Lexus LS220 diesel . I topped up with premium diesel fuel then added the Injector Cleaner (450ml bottle), also added fresh oil to engine as was tad low. I then used a full tin of EGR cleaning spray (cost me £10 from local car-store) directly into air-intake. Ran the car high revs for about 5 miles, really rev'd it to clean out injectors, the fault then miraculously disappeared and the car runs a treat. No ODB2 reset required. Total cost about £25 on fluids. I reckon I saved a wallet full by NOT going to Lexus Dealership. Unrelated fault but I had to put in new guide-pins on brake calipers, garage job really unless your well experienced mechanic, symptom is sticking or clunky braking, check if wheel gets very hot on one side!