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Yes it could be the cause. Make sure you have a good engine vacuum signal to the fuel pressure regulator, I suggest you replace the vacuum hose as well as a poor vacuum signal from the engine will cause the regulator diaphragm to "vibrate" and be noisey, this plays heck with the fuel pressure and this may be why the stall.
the fuel tank pressure sensor has nothing to do with driveability only emission. this code could be caused by a melted connector on top of fuel tank that is not uncommon in gm trucks in the 90-2000's
under truck drivers side frame rail between firewall and fuel tank before changing open gas cap to relieve pressure and have rag available for when disconnecting fittings a little gas may spill out
The radiator bearing has gone bad n needs replaced . Easy fix remove the flux capacitor , fan shroud n fan . Remove and replace the bearing . Then check the fuel pressure with a gauge that u can rent at any auto parts store. Make sure your fuses, n rely
Sorry there is no fuel pump reset on the Tahoe. If you have no fuel pressure, check the fuses and relay,and wire harness to the fuel pump from the inside frame rail on the drivers side.
If you can hear the fuel pump working, check the fuel pressure at the shredder valve and there should be 60 to 66 PSI, if you don't you can try checking for 12 volt at the fuel pump wire harness at the frame rail.
Good luck and keep me posted, be glad to help.
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