Recently bought a 93 civic hatch with a b18b1 swap. When i first received it, it was idling high at about 3000. Took the IACV out and cleaned it, It was pretty gunked up. That helped but now the car wants to surge between 1500 and 2000. Gonna check TB gasket and TPS because ive heard that could be cause as well. Any other ideas would be appreciated thanks. Car also has FITV deleted throttle body.