I picked up a Penske Air/fuel meter a few years back in a pile of junk at an auction. I was trying to make it work this afternoon and I can't figure it out. There are 2 major pieces. One is the guage end. This piece works. There are 3 positions. Off, Set, and On. Set is a calibration thing and I can do that. The other piece is the "tester" This looks like it consists of a heat disapation element and some kind of aluminum piece that presumably gets an electrical charge based on the exhaust going through.
The problem is when I shove the thing up the tailpipe (car running of course) and switch the meter to ON I get nothing. Does anyone know of any magic tricks with this particular system?
Assuming the thing is junk (which I think it is at this point) can I get an Air/fuel meter from someplace on the cheap?