I‘m new on the forum, live in Germany (Irish national) and just bought a Sun EPA 75. I have been looking for help, the unit looks great, pump seems to work but I cant calibrate. The CO gauge is bouncing around. I don’t have instructions or service manual but have been reading up on internet. I...
You were a newbie in 2018 - I’m a 2022 newbie. I just purchased a Sun EPA-75 and have no instruct or idea how to use. I have a couple of old cars I’m rebuilding and would love to be able to tune with the help of a CO measurement. Would you still have instructions for the EPA-75