How do you clean the maf in a 98 es 300 and the idle air control valve screws on mine are stripped and I think it's clogged I'm having the same acceleration problem
From stop or roll and idling stumble , my car started with the idle air control Unplugged I had forgot to plug it back and it just made the problem I'm having more harsh by like 80 percent. I found that it was unplugged so I'm pretty sure that's what's clogged ?? Since it's the same problem when unplugged just enhanced the issue making it more noticeable ... when I reconnected it my old problem was still there it was the same type feeling just way less and only on idle while turning the wheel even or some times only not all the time while idling ..

Mechanic just said
Coolant flush will be needed
Temp coolant sensor po125
Air fuel ratio sensor soon needed ....



Maf sensor- soon needed - how do I see if mine is bad I took it apart and looked at it it seemed fine

Any one in maryland knows a lot about the 98 es 300 1mzfe ??

 

The intake piece that connects to the front side of the v6 via tube right before the maf air filter box with the kind of big chunky piece for no reason ? Or airflow ?It had thick oil in it I don't know how to attach my pics from my iPhone but the ridges in the tube had thick oil not easily coming out I had to
CLEan with q tips and leave it upside down on the side walk to get all the oil out. .. The pcv valve was changed I also cleaned the tube connecting to the front side of the v6 to intake

 

You can clean the iac from the vacuum line that comes out of it by blowing deep creep (seafoam in a spray can) through it. It couldn't hurt to send some through the other end of that line too, as that line ends up going right to your injectors.

 

Thanks bro