07 Tundra, 135K miles, driving on fwy and engine went silent. Floored gas pedal no acceleration or engine noise. Check engine and A/T oil temp lights came on. Felt like power steering turned off. Coasted to shoulder and towed home. There were No Codes. After that the engine cranks, but no turn over or start.
Another post mentioned it is often the Fuel Pump Computer Module. Special ordered it, no returns. I called Toyota Service Advisors about it and they said that part needed to be programmed and takes 2 hrs at $200 per hr, but they often see the fuel pump go out, not the pump computer module. I have a mobile programming mechanic friend that came over and there is no Factory software to update with and the tech manual does not mention it needing programming. Seems like I was given bad info. He did see an update for the engine software and mentioned any fuel module programming could also be applied, so we updated. Also, removed spark plug from engine, cranked it and saw visual spark, removed electronic fuel injector clip, put a light on it and could see the electronic signal, so they are firing. He thought it was maybe a timing issue.
Next day, I removed the air intake and cleaned the carbon out of the throttle body and squirted starter fluid into it. The engine started and ran for a few seconds. So it’s a fuel issue. Ended up taking to shop cause I didn’t have any more tinker time. Mechanic mentioned the CEL and A/T lights are always on for a second, before the engine starts. After the engine is running, they turn off. So they will illuminate if the engine stops running.
Other thoughts were issues with fuel pressure regulator, fuel injectors or rail, fuel pump not working. Diagnosis was a bad fuel sending unit. Gas gauge read ¼ tank, but was dry. Decided to replace fuel pump assembly since everything was opened up and wont expect future issues.
Assuming Fuel Pump was your issue.
