Alright so i just got an integra rs with the ls/vtec swap. The guy said the ecu is chipped when i looked I couldn't see anything but i did see a chip that my other p28 didnt have. It looked like it was ment to be there though because on the other p28 I have there is a spot for it. Anyways the one that came with the car is an a52 p28. Isn't that auto? If so how is it working? Should I run my other a01 ecu? Lastly when the car warms up the rpms pulsate. Like go up and down and gradually get lower.. then after a while it drops to 800rpm and idles normal. Is this normal?