2001 lexus is300 throttle sensor issue.. car was without battery after having to instal new main fuses. we got the main fuse in then we had no throttle what so ever.. we let the car sit and idle for awhile then we got some use with "alot" of play.. now the car will not start without full throttle position. the mpg needle doesnt appear to register because of this problem also.. any ideas gentemen????? lady needs help

Yes, it is possible for the ECU to be bad even if it is still providing codes to the OBD2 scanner. The ECU is a complex electronic device and it is possible for one or more of its internal components to fail without affecting its ability to communicate with the OBD2 scanner. In your case, the fact that the codes went away after replacing the #35 fuse and the IAC motor suggests that those were the underlying problems causing the "crank but no start" condition. However, the fact that the car still won't start after those repairs indicates that there is another problem, and it is possible that the ECU is at fault. To be sure, you would need to take the car to a qualified mechanic and have them perform a more thorough diagnosis. The mechanic may be able to test the ECU to see if it is functioning properly. If the ECU is found to be bad, it will need to be replaced. Here are some other possible causes of the "crank but no start" condition in your Lexus IS300: Faulty fuel pump Faulty spark plugs Faulty ignition coil Faulty camshaft or crankshaft sensor Low compression in one or more cylinders Clogged fuel filter Restriction in the air intake system If the mechanic is unable to find any other problems, then the ECU may indeed be the culprit. However, it is important to rule out all other possibilities before replacing the ECU, as it can be a costly repair.

Go to AutoZone or similar and have them check your charging system.

On the end of the throttle plate shaft. On the opposite side of the accelerator cable.

The code is for a failed throttle control motor or circuit.
You might check to see if the throttle control is plugged in, otherwise you may need a shop manual to test the component.

Check the fuel pump filter first. Sounds like a fuel delivery problem.

Hi :)

Did you look on the back of the fuse panel cover for the fuse placement?

Here is a very usefull sit for you for conponet location.
http://www.lexuspartsnow.com/components/2001-lexus-is300~switch-relay-84-01-1609~2.html


If you need the PDF file email me at [email protected]

it is the only thing with an electrical wire running to it on the brake assembly usually on top of caliper should have plug somewhere on the line .Get the new one first and it will help you see things better.Should only need simple tools

Where is my 2001 Lexus is300 coolant sensor located at can write at [email protected] o can text 414-856-6955 I'll appreciate

back of light there is two bulbs they just twist out

This is an electrical problem. For all 3 at the same time its fuses. check the fuse box. Its inside the car near the driver side.