1988 Pontiac Grand Am timing

Ok I've pretty much checked all possible things. But when I start it sometimes it will like kick back and cough back up the throttle body but hit it again and it will start seems to idle fine when you hit the gas lightly it still seems fine as long as u get it to 3000 rpm before you step on it it's okay. If I step on it quik it pops again through the throttle body and someimes kills it. When reading the live data everything looks to be ok except the spark advance its idling at around 32 and if I hit the gas it drops sometimes to 1 but always very low like 10. Compression it good all sensors been checked or changed except crank sensor. Tried a new ecm installed module and coils only thing I haven't tried is the prom and the crank sensor.