Well I have been having problems with my B18C1 swap into my EK for 3 months now.. the Vtec solonid throws codes, O2 heat sensor and electronic load detector. I have replaced the O2, Replaced the Vtec solonoid and rewired everything multiple times, still the same flipping codes... Yesterday someone that was helping me out noticed that the ECU is a p72 but says AT on this side... its not a manual 5spd ECU.... Would this make a difference, Would this cause my car to behave differently. The car currently doesn't idle properly cold, but gets better as the engine is run. The 02 sensor isnt a big deal but I would like to see the check engine light go out.