engine stalls when stopping fast
I have a 2000 ranger with a 5.0 explorer motor. truck runs excellent now. I had a hesitation but tuned it up. msd coils, taylor plug wires and motorcraft platinum plugs. the check engine light was on when I got the truck but it was just the solenoid vent circuit malfunction. the wire to the back was broke in half. check engine light stays off now. the hesitation went away immediately after the tune up. but when I stop fast at like a stop sign the rpm's drop and it stalls.sometimes it can catch itself and stay running. it always starts right back up and runs great but very annoying it does this. everything is normal if stop under normal driving. any ideas would be greatfully appreciated. thanks.
2000 extended cab, 5.0 v8, 4r70w transmission, manual bw4406 t/c. 31x10.5x15 mickey tompson mtz on helo 15x8 chrome wheels. Coilover conversion, fox remote rez shocks, deaver f31 leafsprings, explorer 31 spline ls, 4.10 gears, leather mountaineer power seats and console