MY Problem

My problem is that I am getting the "Check Engine" light and the "Maintenance Required" light is also on, I plugged in my OBD2 reader but it wont read it, i believe that my OBD2 scanner is compatible with my car, it is an Equus 3140 Innova,
The Info
It idles a little bit rough and some times it sounds like it wants to choke out when rev it from idle,<----I FIXED THE IDLING AND CHOKING OUT PROBLEMS BY TURNING OFF THE TUNER DONT KNOW WHY IT DID IT


It is a 1997 Acura Integra LS with a B18B1 engine, I just recently bought it at a local impound that I work at every now and then, but it looks like someone changed the head and placed a VTEC in it instead,

they also switched the original ECU with a Type R P73 ECU to support the VTEC option I guess,

Also they stuck in a Jet Perf. VForce model 67001 (i had to wire this properly later, the moron didn't even use proper connectors, he just taped the wires together and they were falling apart and disconnected when i got is) <---- I REMOVED THIS LATER TO FIX THE IDLING PROBLEM, I DONT KNOW WHY BUT IT WOULD EVEN TURN OFF THE CAR UNTIL THE MIL TURNED ON

It used to have another remote of some kind that was stolen from it, I know this because I had seen it a few days before(I was working at the time so i couldn't get a good look at it), but when i came back, it was gone just the connections were there, so I don't even know what it really was, I know it was connected to the ECU, some connections were inline and others were spliced, but i decided to get rid of them and wire it back to stock.<---I RECHECKED ALL THE WIRES AND THIS TURNED OUT TO BE A VTEC CONTROLLER, A VOLTAGE METER AND AN MPG CALCULATOR AS WELL,

also the VTEC pressure switch was connected to the KS - Knock Sensor pin on the D plug instead of the VTM - VTEC Pressure Switch pin on the C plug.<--I PLUGGED THIS INTO THE VTM PLUG AND THE VTEC WORKS GREAT IT KICKS IN SOMEWHERE AROUND 5400 RPM


ALSO IT DOES NOT have a Catalytic converter,

and im not sure where the oxygen sensors are located.<---I FOUND THEM, THE FIRST O2 SENSOR IS PLUGGED INTO THE EXHAUST AND THE SECOND ONE IS TAPED TO THE CHASSIS AND THEY ARE BOTH CONNECTED, THERE WAS NO HOLE FOR THE SECOND ONE AS THE EXHAUST IS MODIFIED FOR NO CATALYTIC CONVERTER AND MOVED THE PRIMARY O2 SENSOR TO THE BACK WHERE THE SECONDARY WOULD BE