Re: [90 Accord] Code 43 Returns!
Hi,
Thanks for the suggestions. I have not added any dry gas lately, so
this will be the first thing I'll try(since it's the easiest). FWIW, I
was below 1/4 tank. How accessable is the fuel pump? Do you know if
it's in-tank, or in-line? I have a FSM at home, just not at my
fingertips.
A fuel pressure guage is on my list of tools to buy. In this
situation, would it really help me? I would have to observe it while
getting the CEL. Say the pressure drops for a few seconds - does the
ECU go into 'default' or 'safe' mode, for the entire drive afterwards?
Thanks for your quick response!
-Jamie
>The code 43 went away until yesterday, when I was on some twisty
>mountain roads.
That might be a hint. Have you put a shot of isopropanol in the gas
tank to make sure there isn't some water rolling around in there?
Another possibility is large flakes of rust from the tank. There is a
little cone-shaped plastic filter on the intake side of the fuel pump
that is designed to keep these flakes out of the pump mechanism.
Sometimes they can plug that filter intermittently, dropping your fuel
pressure.
A fuel pressure guage attached to the fuel rail might be a good
diagnostic.
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