Anyone know the exact fuel pressure for the stock 4EFTE motor??
I do not think it is a fuel pressure problem. When you turn the ignition on the the fuel pump will pressurize the fuel system.Anyone still here? I swapped a 4efe with a 4efte in a acorolla E11. Changed the fule pump and inatalled a Wallbro 255. The engine has a custom exhaust and air aftermarket air filter. The engine works fine but I can’t figure out why it doesn’t start overnight. I changed the fuel rail valve but ot still doesn’t keep the fuel pressure so fuel returns tocthe tank after a few hours the car is parked. Is there another fuel rail valve on the return or not? What should I do to solve it? I don’t know how to check fuel pressure. Thanks
Thank you for answering. The guy who is working on the electric swap had to modify the parts that go from the engine loom to the car loom. In this case the water temp sensor should go with his two wires directly to the ECU. Sometimes they go through splitters and the connectors and wires have to be added like the air conditioning. We are still working on that by the way So regarding the fuel pump I noticed that when I turn the key I don’t hear the noise instead I hear it after I crank and the engine doesn’t start so I hear the pump running for a couple of seconds until it cuts. I am thinking that maybe the fuel pump doesn’t activate to pressurize but runs only after crank? how can we figure this out? also I have to check the ECU water temp sensor pinouts and see if the signal is getting there from the sensor wires. I checked on the Internet and I didn’t find that specific water temp sensor for replacement. The sensor on the 4EFE that I swapped has a three pin connector. The EP 91 I put in the Corolla has a two wire connector because the instrument cluster wire has a separate sensor underneath. What do you suggest?I do not think it is a fuel pressure problem. When you turn the ignition on the the fuel pump will pressurize the fuel system.
You might have a faulty water temp sensor or faulty throttle body waxstat.
The "fuel rail valve" is not there for what you are thinking it is. It is to regulate pressure while the car is running.
Interesting because I was told from the British guy who sold me the engine that it came from a glands V automatic transmission EP 91 with 88000 Km. I actually am facing another problem. When the engine runs 800 RPM it starts to smoke a little bit. After I give it some gas and run the engine higher it stops. So we are trying to figure out rather it is the turbo leaking or a valve retainer dropping some oil in the cylinder. I really would hate to have to open the engine. @JaySounds like you have EP82 harness. What ECU? EP91?