I have an intermittent miss on 95 grand prix se 3100 with no service engine light and nobody local has an obd1.5 tester.Are the obd 1.5 test codes the same as obd1?In other words if I have no light,I have no codes.No codes says the computer can't see the problem.Therefore I can eliminate everything the computer is looking at...? I have tested compression,vacume leaks EGR,spark,cat,and fuel.All good at least at the time when I tested them.Leaning toward crank sensor or ignition.mod.Misses like a 3/4 race cam idles then dies and have to wait a while for it to restart.Acts up at any rpm,throttle position,or speed every few days.Never when the engine is bone cold.can't find any other pattern to it.
