Lexus ES 330 won't start

[darko5]

I have an 06 lexus es330 that cranks but won't start. The battery is fine, and I'm able to turn the key and the starter kicks in trying to start the engine. After digging I suspected a faulty fuel pump. After investigation, the fuel pump is working you can hear it turn on we also verified that the line was pumping gas.

 

After all this I took out the spark plugs and they seem not to worn as I've replaced them before but they seem dry and my suspicion is that they're not getting fuel.

Also this problem happened after I accidentally ran the car to low fuel (miles remaining). I filled it up after and then started it up 2 times on separate occasions which it started fine but now on a third occasion its not starting. I checked the gas cap aswell and it was on a bit loose from gas attendant. Also I tried to swap the horn relay for ECI relay but that didn't help either.

Does anyone know what the issue might be with? I'd greatly appreciate any suggestions.

[McBrian]

Gas cap and running low probably not contributors. Some would argue tank crap could have circulated, but I've never see that on a modern FI engine.

Hipshots if there are no CELs:

Spark?

Bad gas?

Saturated or failing charcoal cannister? Seen it a very small handful of times when repeatedly topping fuel off filled the CC and kept EVAP from working properly.

Truly just guesses but maybe you'll stumble on something when checking?

 

[RX400h06]

Yes, running very low on gas can potentially cause the fuel pump to overheat and fail. The fuel pump in your 2006 Lexus ES330 relies on the gasoline in the tank to keep it cool. When the fuel level is too low, the pump may not be adequately submerged, leading to overheating and premature wear.

Additionally, running on low fuel can introduce air into the system, causing inconsistent fuel delivery and potential damage over time. To prevent this, it's generally recommended to keep your fuel level above a quarter of a tank. If you're experiencing symptoms like difficulty starting, sputtering at high speeds, or a whining noise from the fuel tank, it might be time to have your fuel pump checked.