i was googleing my problem with my prelude when i came across this topic on your website https://honda-tech.com/forums/honda-prelude-4/car-acting-up-intermittently-stalls-hesitates-jumpy-tach-icm-problem-1779719/. which it seems that my car does down to a text book t. except mine only does it when it gets up to temp. when the motor is cold it wont do it it will shift fine and rev fine. the motor was swapped out for an h22a instead of the h23. the check engine light is on but thats becasue the egr vavle is bypassed and theres a "test pipe" where the cat should be. the only diffrence is when the car starts acting all jerky and messed up the check engine light starts flashing then dies out. and the dieing out is random i usually dont have any issue restarting it only sometimes so idk wtf to do ?? any suggestion comments help :D