ECU CODE 43 issue need help - 1993 civic

[mtp6061]

Hey All,

Can anyone point me in the right direction regarding a code #43
"Fuel System Supply" check engine code that I keep on getting.

Here are the symptoms -- the car will generate the code 43 and then it might start to idle slower, stall, or not restart after turning car off. This problem only occurs after I drive the car 25 miles or more.

If I let the car sit for awhile (which may vary from 20 minutes to three days it will restart and repeat the same series of problems intermittantly. The only part of this problem that I can consistantly reproduce is the check engine code #43 -- and this sometimes occurs without all of the associated symptoms.

I have already replaced the distributor, oxygen sensor and have substituted in a PGM-FI (fuel injector relay) from another civic.

The local shop could not figure out the problem and was a huge waste of time and $$$ so I am attempting to troubleshoot this myself with little success.

Any suggestions will be really appreciated...

Thanks --mtp6061