UncleRico

iTrader: (6)

First off I need to say I have a brand new upgraded 140 amp alternator that has been tested and it good. I also have a brand new battery and all my ground points are good. And I just installed a brand new OEM IAC.

So now to my problem. If Im sitting at idle and I hit my window switch or even step on the brakes my idle drops to around 500 RPM's or so then jumps back up. Occasionally my car will die. But if my A/C is running and I hit my windows or brakes the engine stalls every time. So basically anytime Im driving my car and I come up to a stop sign or red light the car dies if my AC is on. Its a real pita to turn off my ac just so I can stop my car, which still isn't a guarantee that my car will stay running.

Some friends of mine keep telling me to check my electrical load detector (ELD). Ive researched online but it seems to be a Honda/Acura thing. At least the term anyway.

Does Toyota/Lexus have a version of this? And if so Where is it located?

Or maybe I have a different problem all together?

Please help. Thanks

Titten

Yes, our cars have something called idle up valve. Look it up, that's a good starting point. GL.

kene

iTrader: (2)

before you installed the new alternator, did the car exhibit these symptoms?

If no, then try this:

I have done this on my gs300 1st gen and other cars.

1) start the car.
2) turn on the headlights, or A/C, or radio (or all 3 at the same time)
3) disconnect the negative terminal of the battery.

if the engine begins to stall, or just flat dies your alternator is not strong enough to handle the electrical load.

They say not to perform this "old fashioned" test on newer technology cars....if you do, do so at your own risk.