In a message dated 97-12-23 14:51:18 EST, you write: << As you are interested, I will sort out a .PDF of the circuit for you. If PDF ok? >> Thank you ! I'm sure I'll be back to ask dumb questions, regardless of how detailed you make it! If I can recipricate, I certainly will.. I know only one ECM by heart.. The 7749 turbo unit. Thank you again, Mike V.