How To Locate Sputtering Engine Problem.

1991 Buick Park Avenue. Engine Sputters, intermittent. Give it gas, it seems to smooth out. Checked all sensor connections, vacum lines, system fuses, cleaned fuse contacts. OBD FINDINGS: 18 possible blown fuel injector fuse; 16: Battery/Alternator problem (charges at 13.5), direct ignition system fault line open or shorted ground; 6: MAP Sensor burn-off circuit problem, Direct ignition system. 33: MAP Sensor; 31: Cam Sensor, Turbo Charger, Wastegate overboost or electrical shorted ground; 9: Knock Sensor (inside comp.); 45: Rich exhaust, left side; 44: Lean Exhaust; 12: EST Circuit (electronic spark timing);49: RPM high idle (possible vacum leak); 18: Camshaft Sensor. I checked vacum lines, no leak. I believe there is shortages somewhere to cause all of these codes. I need manual and help in locating and pinpointing which sensor is which. I do have a multimeter, but I have no book to tell me which sensor is which and what values I should be looking for. Please help, I am greatful for any input.