DebbieRX

Hello,

Long time reader first time poster!

I have a 1999 Lexus RX300, second owner. I let my son use my precious RX for a couple of months when all of a sudden one day he called and said it stopped on him and would not start.

I am a DIY'er so I had my vehicle towed to my back yard (shade tree mechanic)!lol
After reading many days of posts on CL I haven't found a solution to fix my vehicle.
1. Spark is present
2. Fuel is not present

I have sprayed starter fluid into the throttle body and still no start.
I have removed the fuel pump an tested the 12v directly on my battery and the pump kicks on.

Timing belt is turning.

All fuses and relays have been checked and are good.
The battery is fully charged.

No codes because I messed up and disconnected the battery. I should have known better but it happened!

Please help! What should I do next? Lexus has 183,000 miles.


Solved on 2/11/2015
I installed a new Timing Belt! She fire right up...I hope this help someone who has the same symptoms.

Bobster999

If its a fuel problem, it should at least somewhat start when using starter fluid directly into throttle body. exactly where and how are you checking for fuel?

DebbieRX

Hello and thank you for responding.

I checked the line that go into the fuel injectors fuel rail and it was empty.

I don't have any fuel pressure tools.

The fuel pump had fuel in it but somehow the fuel is not getting to the engine.

Bobster999

Ok so if you pull that line off and try to start the engine and no fuel is present, then i would check for power to the fuel pump with the key in the "on" position or when starting. The power will only be at the pump for a second or two. If there is initial power at the pump, then your pump is bad. If there is no power for a second or two, then i would start looking upstream probably at the fuel pump relay.

DebbieRX

I switch the fuel pump relay with the horn relay...still nothing

I asked someone to listen back by the fuel pump when I turn the key on and they didn't hear anything. But when I take the fuel pump out and check it out on the battery the pump kicks on.

Bobster999

If u know how to track electrical problems then obviously u need to get a wiring diagram and trace it down if ur sure there is no power to the pump.

DebbieRX

Lol... No I'm not that advanced yet but with plenty of research on this forum I'm sure I can figure it out. I will run over to harbor freight tools tomorrow and purchase the tool I need.

I am usually good at figuring this vehicle out, I mean I replaced my own knock sensors before...But this time I am lost.

Thank you so much for trying to help me.

Bobster999

what tool are you buying?

DebbieRX

[QUOTE=Bobster999;8807344]what tool are you buying?

voltage checker or circuit checker?
Sorry no husband, no brother, no father. So basically google and CL. Please have patience with me.

Wht95scort

Is the red security light blinking when the key is in the ignition? If it was a fuel pump the starter fluid should have make the engine at least hick up,so that's why I'm not thinking its fuel related. Let me know about that light.

DebbieRX

The light stop blinking once the key is in the ignition.

Wht95scort

Ok well that's a good thing. Look in the fuse box near the battery for a relay called "cp/o". Try swapping that relay with another one that's similar to it but doesn't control anything important such as a horn relay. If it still won't start pull a spark plug and see if it looks wet.

DebbieRX

I don't see any relay called cp/o
I see...
Horn
EFI
M/G CLT

I will check the spark plugs in the morning and I will let you know. Thank you for helping.

Wht95scort

It should be the second relay in. It should be blue.

DebbieRX

I can not locate that relay. My fuse box look different than the one on the picture.

I pulled spark plug #2 and there is no liquid on the spark plug.