87 crx

I recently bought an 87 crx si from this guy who let it sit for about a year in his yard. I did all the necessary tune up stuff but the PGM-FI lights comes on then the car revs up to about 4k then shoots even higher after that. Ive tried cleanin it out with carb cleaner and got it to idle for about 10 mins before the PGM-FI light came on and the rpms shot sky-high. Does anyone have any info this??? Also if i need a new one, will an 87 civic intake manifold and components fit onto it.

You need to see why the light is on. Lift up the passenger side carpet in the foot well area, turn key on(do not start), look for a red light flashing. Count the number of flashes to determine the code.