i have 93 teg with 1.8 non vtec anyways i started it the other day and it revs to about 3000rpm goes down to 1500rpm goes back up to 3 grand at first i thought i had a vaccum leak but i checked that then i checked the map sensor but nothing seems wrong there anyways any info might help i am a pretty accomplished tech and just havent had alot of time to diag it but like i said any info would help thanks

 

Humm I had the exact same problem, replaced the MAP sensor and helped a small amount untill about a week later it just work itself out, guess the ecu just reset itself.