gentlemen67

Replaced thermostat past September and water pump. I was shocked though that this 98 Ls400 required year 2000 thermostat. I was shocked again with two tries at replacing door handle from South Carolina supplier of car parts. The first was 1994 Lexus door handle shipped. Second door handle for 1999 or 2000 model shipped. Surprised that in Japan how new model innovations are fitted into previous ones still in production covering two year span even. I'll just wait til spring before attempting 3rd door handle replacement - driver side. The engine runs very well, very quiet. Love this car more than any other in 55 years! Thanks for that info on thermostat.

I had same symptoms on my 98 LS400 198,000 miles one month ago. The error messages provided were too numerous to mention. I settled for OCV replacements both left and right. All problems resolved. No more error messages, engine light. The motor sounds as it did in 2004 when purchased. I hope this may be helpful. I ordered the 2 Oil Control Valves from Philadelphia company, less than $100 each. Just trying to be helpful. This is my first post ever! (lol)