Hello. I just bought a new HHR with the 2.2 Ecotec and 5-spd Getrag manual trans. I have been a Chevrolet enthusiast since the mid-sixties, but my hands-on hot-rodding experience has been limited to small-block V-8's and the like. This is the first vehicle I have had with an ECU, although I operate tractor -trailers equipped with the technology on a daily basis. Now that I have found this website, I see I will have some reading to do.
