|
Interestingly, once again, after maybe 200 miles "fixed" the exact same problem has returned: wildly leaning-out fuel trims, associated with a decrease in power, and decrease in fuel economy. My tank average is dropping fast. This is the third return after the initial repair. Each time the problem goes away for a few hundred miles, or even nearly 1000 miles, and then returns. First time I made it go away with a fuel pressure regulator, then replaced the regulator again when the problem came back, then fixed it by cleaning ground wires when it returned a second time. Now it is back again, for a third time.
Why does it run normally for so long and then return to this fail state again?
Puzzle!
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|