Thanks! I have a question (already). Just replaced my ECU because the original one died. Car runs fine except that it seems to be having a problem finding idle at start up when the engine is cold. Engine "hunts" for idle. Usually, if I cut it off & restart, it seems to idle & run fine. Also, the check engine light is staying on. I've tried unhooking the battery for 10 or 15 minutes or so and then restarting but the light still stays on. My local mechanic says that he can't flash or read the ECU with his tester. Advice?