Quote:
Originally Posted by Lexus4321
Well, after a bunch of testing it seems my fuel pump went south. The ECM, relays, fuses, sensors, all seem to be ok.
I suspect, when the fuel rails and lines there went empty and was just air after install, when the pump cam on it has no liquid resistance and probably took a dump. I can run the pump manually and some fuel come out of the fuel line, but it's not 50psi. It also sound funny when the pump is running. I am now in a project to replace the pump. But get this, there's a access panel under rear carpet BUT NOT BIG ENOUGH TO REMOVE PUMP THROUGH! Yeah, I am not dropping the tank, just gonna cut open what's needed and TIG it back into place.
With Toyota, the ECM code will not engage C/OPN relay until the ECM gets the START (starting) signal AND signal from crank sensor. Once the engine is running (I assume a rpm threshold) the ECM will keep C/OPN relay energized, which feeds the pump selector relay, etc.
And just to note, I am not mechanic by trade, I just a DIY'er with a lot of tools  |
Ill second the bad idea. You will have residual fuel everywhere, and fumes . Can you loosen, and lower the tank just far enough to wiggle the pump out ?
I have a few buddies who have caught cars on fire. You will have saved no time if you burn your garage down. In this situation, you will be in the car, right smack on top of the fuel tank , with no way to escape when the fireball comes at you . Don't be a crispy critter