I need to pull codes

[b16amodified]

I just purchased a fully chipped p28 ecu for my 16a engine..When I went to my mechanic to have him install it he told me that he would not be able to pull the codes from this ecu and I would have to buy an unchiped ecu. Can anyone tell me if he is just trying to get me to buy one from him so he can make money, or if I really need an unchipped ecu to pull my engine codes from? I appriciate any help I can get.
Also on another note...can anyone give me a list of code #'s and what they mean? Thanks

[superbluecivicsi]

converted to obd1? chipped with what?

http://www.honda-tech.com/zerothread?id=1171263

[b16amodified]

This is the information I have available on the ecu:

FULLY PROGRAMED AND CHIPPED p28 SPOON SPORTS RACE ECU.(NOT JUST CHIPPED LIKE EVERONE ELSE!!) EVERY PERFORMANCE PART ON YOUR CAR WILL GAIN POWER FROM THIS ECU BECUASE IT WILL LEARN YOUR CAR AND DETERMINE HOW TO RUN IT BEST FOR MORE POWER!!!! THIS IS PERFECT FOR STREET / STRIP USE. THISECU IS DIRECT FIT FOR 92-95 HONDA/ACURA. (96+ will need OBD1 conversion harness $75, email me) .THIS ECU IS IDEAL FOR 92-95 CIVIC VTEC THIS ECU HAS:

• UPGRADED AIR/FUEL RATIO
  
  
• ADVANCED TIMING
  
  
• VTEC ENGAGEMENT@ 5000rpm's FOR 5-SPEED TRANS
• REV LIMITER@ 9000 rpm's FOR 5-SPEED TRANS

VTEC ENGAGEMENT@4400rpm's FOR AUTO TRANS
REV LIMITER@7000rpm's FOR AUTO TRANS

• NO SPEED LIMITER