I just replaced the distributor cap and the cat to solve a bad sputtering and backfiring. Now while accelerating from a stop the rpms drop from about 700 (idle) to 0 for a sec long enough to stutter then jumps up and runs just fine until I have to excelerate from a stop again. Maybe crankshaft positioning sensor?

 

I would suspect the MAP sensor or TPS before condemning the crank sensor. Any codes?

 

the check engine light comes on a minute the goes off when put in park and it startes to idle about 2k for about 30 seconds and drops to normal again thats while in park as well

 

Cycle the key on, off, on, off, on, the count the flashes of the check engine light. Long flashes are the first number and short flashes are the second number. Like a code 41 would be four long flashes and one short flash.

 

Alright got the codes and googled them
12
24
14
33
Of course a 55
Its all thing iv messed with how can I clear them to start fresh with no codes until I run it for it to thow a genuine code that I didnt cause. But I did take card cleaner to the iac and throttle body the housing or whatever u want to call it for the ica was very dirty and send to have stopped the stutter while at and idle but while run 55 - 60 mph the rpm drops abot 500 to 1000 an takes alot of peddle to get it to accelerate

 

You can take it to Autozone or some other shop and have them clear to codes with a scanner.