MD83 CREW HAD THE #2 ENG FAIL ON DEP FROM ZZZ.

Narrative

ACFT SYS FAILURE ENG. LOW CLOUDS; RAIN; ICING CONDITIONS 5 DEGS C FOR TKOF AT ZZZ. ANTI-ICE TURNED ON RIGHT AFTER ENG START. TKOF NORMAL. AT CLEAN UP; CLB PWR SELECTED AND WING ANTI-ICE TURNED ON. SHORTLY THEREAFTER FO STATES THAT HE HAS A R ENG FAILURE. I LOOK TO SEE THE R EPR LOW. ALT HOLD WAS THEN SELECTED TO COMPLETE THE CLEAN UP TO RETRACT THE SLATS AND THE INITIAL STEPS ON THE ENG FAILURE PROC WERE ACCOMPLISHED. I DECLARED AN EMER AND TOLD THE FO TO HANDLE THE RADIOS FOR A RETURN TO ZZZ WHILE I RAN THE CHKLIST AND ASSESS THE ENG. BEFORE RUNNING THE ENG FAILURE CHKLIST I TAKE A FEW MOMENTS TO REALLY LOOK CLOSELY AT THE ENG INSTS. I AM IMMEDIATELY FRUSTRATED. WE ARE IN AN AIRPLANE WITH THE LED DISPLAYS AND; PERSONALLY; I FIND THEM VERY DIFFICULT TO READ GIVEN THAT I AM SO USED TO THE OTHER CONFIGN. AS FAR AS I COULD TELL; THE ENG WAS STILL RUNNING BUT IT WAS JUST NOT PUTTING OUT MUCH THRUST. HOWEVER; IT COULD HAVE BEEN WINDMILLING. I COULD HAVE ANALYZED THE SIT MUCH QUICKER HAD IT BEEN ANOTHER ACFT. I DECIDED TO MOVE THE THROTTLE A BIT AND ALL OF A SUDDEN THE ENG RESPONDED TO THE THROTTLE MOVEMENTS. ALL PARAMETERS RETURNED TO NORMAL. WE RETURNED TO ZZZ AND MADE A NORMAL 2 ENG LNDG. CFR LOOKED AT THE ENG AFTER LNDG AND ALL LOOKED NORMAL. WE WENT BACK TO A GATE AND EQUIP OTS. TALKING WITH MAINT THE NEXT MORNING THEY SAID; AFTER REVIEWING THE RECORDER; THAT THE ENG WAS PRODUCING MINIMAL THRUST FOR 4 MINS AND THEY SUSPECTED A FUEL CTL UNIT OR A FUEL PUMP. SUPPLEMENTAL INFO FROM ACN 631706: IT WAS DETERMINED THAT THERE WAS NO SEVERE DAMAGE OR FIRE INVOLVED. WE STILL HAD ROTATION ON THE ENG RPM. ATC VECTORED US BACK FOR A LNDG ON RWY 35R. DURING THE TURN THE R ENG RELIT. WE FINISHED THE CHKLISTS; AND AS A PRECAUTIONARY MEASURE SET UP FOR A SINGLE ENG LNDG.