Lexus Troubleshooting Questions? Ask a Lexus Expert
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.If you setting a lean code the first thing you need to do is to install a fuel pressure gauge and monitor the fuel pressure while the problem is occurring. Normal pressure on a properly working fuel pump should be right at 44 to 50 PSI. Anything less the 44 PSI would indicate you have a failing fuel pump. Check this for me and post back with the results and we can work from there.