lalipa

LX470 1999 bought 2weeks back without much of repair history and 85%Pass good engine sound and many feature working except some luxury off road feature high/low and 4wheel (may be motor burnt), well now just a week ago it starts and stop some 4-5m run with indication on dashboard " AT Temp" and "Orange air flow"alarm signs. Then again able to start with no warning sign, in the steady position stops with above signs. ECR already appeared 4-5days before this incident with no trouble in drive. Before I could plan to pay a trip to mechanic this event happened. The car was then towed to garage and then he first checked computer, no issue, then cleaned air filter but no improvement, then removed massairflow sensor(differential pressure) no improvement,then changed fuel filter no improvement, then changed intank fuel pump no improvement, then cleaned injectors no improvement, now mechanic advised to change the fusebox. It looks he following an elimination technique and had no clear idea of the root cause. I just need helpful advice with possible reason if anyone undergone such failure/symptoms, also need fusebox photo ( I doubt mine not same as lx470, may be replaced one).is it possible to burn fusebox while checking / removing so many things here n there ? car still starts even with bad fusebox (as he says) but stopping on same alarms. To me as lay man it looks some wiring short or some relay malfunction after certain seconds of startup. Its either electrical related or mechanical fuel flow/spark/filter/injectors..... please advise.

tlhicks

Wow sounds complicated. I hope you figure it out. Am I reading this correctly? That you knowingly bought a LX470 with non working AHC (High/Low) and none working 4 wheel drive? Really? I hope not. Because if you did it was a huge mistake! Unless you are mechanic (obviously not by the post), and got it super cheap (like $2000 or less). Dude, This sounds like a good candidate for a parts truck. I need one in you want to sell it. Really cheap! Again like $2000. That's all its worth. WOW!

hankinid

I agree with tlhicks that you appear to have ended up with a ticking time bomb.

I think it's obvious that you guy who calls himself a "mechanic" hasn't the faintest clue about the problem(s) and is simply throwing your money and parts at the truck.

You need to find a good indy who that uses Toyotas TIS (aka TechStream) to find the cause(s). Obviously a Toyota or Lexus dealer can do what you need, but usually more $$$ than an independent shop. Report back with what you find out.

hth