Where is the ecm located on1994 lexus es 300

SOURCE: Lexus ES 300

Unscrew the gas cap, wait 30 sec and screw it back on making 3 clicks/cracks. Should be ok in a day or two.

SOURCE: thermostat location on 1997 lexus es 300

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

SOURCE: 92 lexus es300 knock sensor

Need to remove the upper and lower air intake manifold.  There are two knock sensors for the front and rear pistons banks.  If you plan to do this yourself it is about 1 to 2 hours.  While you are at it, there is a short coolant bypass hose sitting in the same spot, replace it.  Another problem with the knock sensor is the wire harness used to connect the two knock sensors into one connection sometimes wears out and contacts the metal on the engine causing false signals to the ECM, so replace this cable also.
Just did this last summer on my 99 ES300.  Pretty easy.
DIYr

ZJ Limited

• 17989 Answers
• Posted on Aug 31, 2009

SOURCE: where is the starter located on the car 1999 lexus es 300

Change 1999 Lexus RX 300 Starter

Here are some steps:
1. Disconnect the positive and negative cables from the battery. Disconnect the 2 bolts that connect the battery hold down bracket to the vehicle. All of that was done with a 10 mm socket. Remove the battery it and the plastic tray that it sits on from the vehicle.
2. Loosen the large clamp that secures the engine air intake to the big black plastic box that houses the air filter with a 10 mm socket or a large phillips screwdriver.
3. Unplug the large electrical connector from the top of the air filter box by pressing the tab on the plastic connector and pulling. Unplug the small electrical connector from that same box top in the same manner. This 2nd plug plus a small black air hose the size of your finger are just below and to the left of the master cylinder when you are looking at the engine from the front. Squeeze the hose clamp with plyers and remove that small hose also.
4. Remove the top of the air filter box and the air filter.
5. Remove 3 10 mm bolts from the bottom of the now empty air filter box and pull the box out of the vehicle to gain access to the starter.
6. Depress the tab on the small wire connection that is attached to the starter and pull the wire out in the direction of where the battery had been. This tab was hard to find and press and I ended up getting a mirror to be able to see the tab and what needed to be depressed. I pressed from the bottom up and then pulled the connector out to my right.
7. Remove the 2 starter bolts that hold it to the engine block with a 14mm socket.
8. The starter was snug but you should be able to pull it out (to your right) and flip it up so that the starter gear is pointing towards you to have access to the large cable that is hooked to the starter for power.
9. Use 2 small screwdrivers to slip under the snaps on the plastic connector cover. Open it and slide it back down the cable.
10. Using a 12mm socket, remove the power cable from the starter.
11. Reverse this process to put the new starter in.
12. Enjoy the praise that your wife gives you for a job well done!

Good luck, and remember rated this help.

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SOURCE: 99 lexus es 300 chk engine and trac lock lite on

I had check engine light and TRAC OFF. OBD-II MIL code was P1133 which is Air Fuel Ratio Sensor Response Malfunction and scanned by AutoZone. After disconnecting the battery for 10-15 minutes, the lights went off. I cleaned the gas cap and tightened it firmly. For the last 400 miles, the lights have not come back. When scanning using Snap-on one, no code was detected. I think gas cap was the reason for the lights.