well, havent had my car for a few days, but still wondering why vtec isn't kicking in. no dents in oil pan, oil is new, vtec solenoid strainer is clean, just still wondering what the iab(intake air box) really is. is it the black box under the IM? this is the SIR 88-91 version of the b16a, so I do not know if it even requires the IAB. but either way still researching and trying to find my problem. I will replace the cap soon because I pulled it off and the male pin on it is all rusty.