Civic EG

I brought my car to a mechanic because my engine light was on and my car spudders into every gear and in 4th I can hold the gas all the way down and the car goes slower. The mechanic did say it was my ECU. Do you think the ECU could be the problem? When going into 1st it takes a long time before it gets going. I have a swapped D16Z6 Vtec that the mechanic put in, the engine has 54,000 miles. The car when I bought it also had the same engine but had 170,000 miles on it and threw a rod. If I get a new P28 which is my main question can I just hook it right in myself?

sure u can install your own ecu. its only three plugs....unplug put new ecu in plug wires back in and ur done. before i went and droped any money on a ecu i would check what the cel light is though there is a thread on here somewhere that shows how to diagnois your own engine light. i dont know where it is off the top of my head but mabe someone else will post up the link

http://civic-eg.com/viewtopic.php?t=1558
there you
you dont have to take out the carpet tho u can just feel around and pull the wires down

I'd check the code and see what the code is:
http://civic-eg.com/viewtopic.php?t=1558

It could be a hundred things, most of them are a lot more likely and cheaper than the ecu