u/Status_Panda_9606

so heres my 96 Integra GSR with rebuilt motor and trans. its having a really bad surge that it used to do months ago (maybe a year now) that i stopped driving it for a bit and when i picked it back up it wasn’t doing it. well recently within the last two months ive been driving it with no issue and now it has resurfaced.

check engine on is mainly due to it having a p91 ecu (or so i was told). is that a possibility of why it can be surging?

when it first occured i tried cleaning IACV and any intake parts that could be caked with gunk so i have my doubts there but if anyone thinks with some certainty that it will help then i will do it again.