October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Trouble Shooting: Notes

NOTE: Observe PGM-FI or Check Engine warning light. If light is on and no codes are flashed by LED on ECU, this indicates that backup system is in operation. See LED DOES NOT FLASH under CODE 0, NO CODES in TESTING section of this article.