The engine itself is at about 125,000. I think there may be a vaccum leak, and that’s a strong maybe, but other than that possibility, the engine is in great shape, with no problem or codes. I am the second owner of the vehicle and the previous owners actually kept record of having it serviced every step of the way. They had the money to do so. That’s partially why I was interested in doing a few things to it within reason. Thank you though for all the very much valued input