is there any software and cables i can use to log data on to my laptop for a 95 i4?

Hey the admin stole my post!! JK! Anyways my battery is in the trunk now. Also my car did fail air care (aka emission testing) with high HC and NOX

do our cars hold intermittent codes. everytime it does this the check engine light comes on then goes out. a key dance gives no codes.

My car had been running like a bag of crap latley so i have been replacing things. I replaced the O2 sensor which made the car run fine. However, the next day it would not idle so i replaced thi IAC. Now it runs very well and idles nice. The problem is occasionally it will start to run real rich while driving(my A/F gauge tells me) and will start to flood and run like crap. After about 30 seconds of this it runs perfect again. I installed crane nitrous/street grind #12 cams and gears and replaced all the internalls with new. Any Suggestions