Thanks for the help... got it in... but have a few problems

Any help at all will be very much appreciated:

> getting 2 errors from the ECU (don't know which ECU I've got yet):
-ATrans err (is this a wiring prob or wrong ECU prob?)
-Mass Airflow Sensor err (though this engine doesn't have one - any idea how to make it stop checking for one?)

> very low power at low speeds... related to the above? idea how to fix?

> any recommendations on exhaust models (ie. which make/model car should I be purchasing for?)

> will I be using my old D16Z a/c or the new b16a2 a/c?

thanks again