Help Troubleshooting Fuel Trims

[GregBunney]

I ran into a similar issue years back. Not the same but had high fuel trim issues. My long term trims were high after a 2+ hour road trip. After the MAF and MAP sensor replacement without changes, I found it to be a fuel pump issue. The previous owner had had the pump replaced but they didn't crimp the new electrical wires together. They twisted the ends together and taped them up. After the replacement and proper crimping of the wires, better trims and no issues since.
Again maybe not the same but just thinking it could be a pump issue.

Tested today, primed at 53-54 and ran at about 42-43. Fuel pump time probably?

 

[GregBunney]

Many auto parts stores will "rent" them for a credit card deposit that is refunded when the kit is returned.

Tested today and came back 53-54 at prime and 42ish running. Fuel pump time?