I purchased my roadster about a month ago, & the engine & transmission seemed to operate fine on my test drive, but now my transmission continually goes into limp mode. Several days ago I took it to a local transmission shop, & they got back with me today with results from their code scan: P220A (N2-N3 Speed Sensor Mismatch) & P2200 (N2 Input Speed Sensor Circuit) along with an engine code P0715 Transmission Control SYS. I have cleared these codes several times, but the transmission continues to go into limp mode after 20-30 shift cycles. The shop recommends a complete transmission overhaul, but since the transmission seems to operate fine once these codes are cleared, I do not think a complete overhaul is necessary. I have read that a conductor plate should take care of the P0715, but what about the others?