Lexus Troubleshooting Questions? Ask a Lexus Expert
Hi. What type of lexus is this?
Has the check engine light been on?
Have you replaced the fuel filter lately?
Ok. Fuel filter would be a good place to go next. Otherwise you may have to actually check the fuel pressure.
I would not say common. You need to get a fuel pressure gage and hook it to the fuel line
But you do need the correct adapter to hook up a gauge to your fuel line.
Yes. Any will be sufficient
Alright your welcome. SOunds good.
Ok. You should probably have the fuel pressure checked then.
Do you have the means to check the fuel pressure?
Without checking fuel pressure and I assume with no scan tool, at this point, you can try to do some basic checks. Like clean the throttle body. You could have a throttle position sensor that needs to be replaced. You could have a vacuum leak. You also could have a timing belt that has slipped and may be missing some teeth.
Probably a few hour job. But I am yet to be sure exactly what you have going on.
It might get worse until the air is worked out, but that only takes a minute or so. Like I said a throttle position sensor can cause lack of power on take off. A week fuel pump can cause that. Did you try blowing through the old filter? If it has been restricted for a while the pump may have been straining and now is weak. Thats why a fuel pressure check is handy. Helps to eliminate fuel as the possibility. That is not uncommon for the pump to be weak for sure.
I dont know if the lines were dirty, but maybe some bad fuel. You can usually bang out the old fuel filter to get an idea of how dirty the fuel was.
How is your car running at this point? Please let me know what you have done and please rate my service so far. Thank you.