How many MPSs are "popped"? Options

[McMark]

I pretty much assume that every MPS I see is either broken or on its way out (diaphragm damage). I'm I right or wrong?

[Bleyseng]

"You said your Janbo tester actually emulates the MPS...is that true or was it a misprint? If so, could the circuit/s just be reverse engineered and Voila...MPS substitute. How is this off base...? "

No, its tests the circuits on the MPS and wiring. It emulates the ECU with a peabrain so you can test the ECU for failure.

Diaphrams are what are needed to repair the MPS. The hard part is the connection of the diaphram and the center piece/stop. I have seen new diaphrams that are soldered in, yuck! They run like sh*t too as that effects the throttle response.

I have even had Mercedes guys ask me to fix MPS's...there is no supply out there for the '70's cars that used the Djet.

If anybody wants to make a product this is it. There are enough of the other parts to last. Calibration using a Wavetek works thanks to Brad Anders. course the best calibration is with a A/F meter....

Bowlsby, get the Janbo from Chris Reale after he is done with it to play with. It even comes with a manual!

Geoff