V8KLLA

iTrader: (3)

http://i257.photobucket.com/albums/hh211/V8KLLA/LexusSC400.mp4

Please let me know what the hell it could be. At first the car wouldnt start at all, so I replaced the fuel pump and now it's doing what the video shows. Next I replaced AFM, as it acted the same when i unplugged it, made no difference.

I'm pretty much all out of ideas and have almost given up on this car already.

iridebmx

iTrader: (6)

you probably got a hose disconnected somewhere.... check for ANY vacuum leaks they will do this to the sc400.

if not that than check your iacv.(idle air control valve)

OG Dada

iTrader: (10)

First thing that came into my mind were the parts you replaced, after that would be what iridebmx said. Then check your battery to be sure, 'cause it sounds like it slowly looses juice to crank it. Must be grounding or something.

Tabaka

iTrader: (8)

Could be a few things. I would have someone professionally look at it. I always have funny issues like that. I found that resetting my ECU every few weeks fixes that little bugs and glitches.

V8KLLA

iTrader: (3)

Thanks for the replies guys, I'll take a look at a few more things but I'm super frustrated with this car already. I hope it's something really easy.

Jessemkiii

cant see the video, on my sc300 i replaced the pump, afm, filter all sorts of things it ended up being th rubber hose in the tank had a crack and all the fuel was spraying back in the tank. i just so happened to prime the pump while i hade the cover off and saw it spraying. not saying its your problem but it could be lol good luck