I have a 1995 Lexus ES300 with 180k miles. Occasionally, when I start the car, the engine turns over and begins to idle, but very quickly comes back down and will either stall completely or waver back and forth and then, may or may not stall. This problem used to happen very infrequently(once every 3 months or so), but has been happening more and more often(1-2 times a week).
I use the following solution: After the car stalls, I turn it on again, with the accelerator all the way down, so the engine revs up to 5 or 6000 rpms and when I let the engine come back down, it is almost always able to idle like normal. I’m not a car expert, but it seems like maybe the fuel lines are clogged and when I rev it, it breaks up the clog??
Thanks for the help!