Hello, I have repaired greater than 30000 vehicles in my career and I craving to question you questions before I am not there in person to accrue facts, data, or to exam your vehicle. I may ask you to do something laboratory analysis in my stead. If examination is needed and you would rather not do its stuff testing, I can offer my best advice, Fuel pressure?
I started the car happening this morning, it starts going on and runs at 1750 and within a minute or as a result climbs exceeding 2500.. It is doling out smooth though, just habit vanguard than it should be. I afterward checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and all links verified. I quality fine just about them as I've been in there a bunch of times..
similar to I start the car, the engine surges in the works between 1200 and 2000 rpm assist and forth. I misrepresented the IAC and the TPS with no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle keenness screw to subjugate the rpm and it would maintain for a while. Now, the engine is continuously surging to the lessening where I cannot steer it for radio alarm of damage to the steer train. Any experienced solution?