Recent content by redcarrara

I am sorry the cover is at the back center or left of the engine as you look at it.

The idle screw is under a cover on the back right of the engine. The cover is held on by 3 or 4 different nuts. Look for the throtle cables going into it. Then the actual throtle setting is a small allen screw and a lock nut thing. If you cannot find it I will photo it for you. FYI all my...

lexus bouncing idle I tried to replace the fuel filter and it is rusted in place. Any ideas about cutting the lines on both sides and splicing in a new fuel filter? Also in replacing the engine CPU below the glove box, I removed one lower panel and then took out the lower bolts for the next...

Ls 400 Engine Idle My engine idle was bouncing all over the place, and the car was stalling for no reason. The car had been to 4 mechanics including the dealer. No codes read and the check engine light never came on unless it stalled and the entire dash lights up. I played with the ISCV...

wHAT tells the ISCV to open and close? Is it the engine CPU or some other sensor? Mine seems to be functioning but not when it should. The idle will drop off for no reason at all.

iscv I looked at the ISCV which I think is at the front of the intake plenum. I unplugged it and it did not change the idel phenomenon at all. It still idels low when cold, or spontaniously and then later idles faster. I think something is telling the ISCV to change the idle speed. What...

Hi, I am new here, I have a 90 LS 400 that has developed a wandering idle. It actually cannot idle sometimes and stalls. This started on deceleration off exit ramps. It now happens randomly. I have turned the idle screw up so the car does not stall. Now it either idles at 1000rpm or 1500rpm. It...