Have Toyota Questions? Ask a Mechanic for Answers ASAP
Hi, welcome to Just Answer. I’m Ron and I’ll be helping youtoday.Before we get started though, Please understand that I don't knowyour skill level or tools you have to assist us. Also understand thatI can't see, smell, hear, or touch the vehicle either, so patience isappreciated. JA is a great Q/A site, but it does NOT replace arepair shop.My goal is to make you happy and get a great rating in return formy time. Sometimes I have to give you bad news that I know youdidn’t want to hear, so please don’t shoot the messenger.
In most cases, the fuel pressure is being lost in the fuel rail from either a leaking fuel injector or a bad check valve on the fuel pump. You can run a test on the injectors with a pressure gauge /leak down test and then you'll know which it is from there.