My 02 Express, 4.3 Vortec, has an issue of mis-firing under heavey
load or step hills. New Wires, plugs, Cap, Coil Etc. The Computer Scan
DTC P1381 Misfire Detected - No Communication with Brake Control
Would the Brake Control Module actually cause the vehical to mis-fire
and hesitate and go crazy? It flashes the check engine light while
clinbing hills. Sometime works not to bad. When you leave in the
morning, It barley crawls up hill kicking and bucking.