Hi, new member, hoping to get some advice. 2006 gs450h, seemingly a well talked about subject so apologies if this is not too exciting! I get either one of these codes from time to time, clears itself usually within a few days, in the meantime the car drives perfectly. However, I also get the cold starter vvti noise that people mention a lot, and it's got more frequent, in line with how often the codes come up. I spoke to Dave at lextech some while back, before the world went covid mad. He was one helpful chap and suggested the vvti mechanism on the inlet side of either bank is well known to fail. My question is, has anyone had this issue and resolved it without great expense? The eml only comes on after a cold start or when the engine had been off long enough for the oil to drain back from the vvti system. Might be grasping at straws here but is it possible the code is triggered by the temporary lack of oil pressure on start up? I also read one post where a mod was created to eliminate the cold start chatter, not been able to find the write up, although that might be me being stupid! Any help is appreciated folks, frustrating issue with an otherwise sublime car.
