Hi,
I have tested maybe 50+ 0 280 100 015 MAP and have see what value that is normal. The MAP I us on the test stand is a orginal not open 0 280 100 015 that is not leaking. my Volvo 164E is stored dry for the winter in a building away from my home, so the plan was to make this test stand and test som extra ecu I have to see if I have one ECU I can change to and see if I get better fuel economi, so the parts I use in the test stand is not the parts from the car. but when the spring is comming and I start to use the car again, I will change to this orginal not open MAP to see if it is some differance. I feel safe that my work on MPS is ok, but only do the test for confirming this teori.
I use the MPS diphragm kit from tangerine in usa, in beginning it was problem with leaking, but I talk with them and they fix the problem and after that not problem with leaking, only very high price. you have more info on your diphragm? you sell to other people?
sometime I find leak in the plastic seal for the center adjusting screw, sometime I find leak in the 4pin plastic contact. 2 times I have find leaking one of the androidcells so the inductanse value get too low on every pressure level.
I have test many new old stock 0 280 100 059 MPS made in france, (not Germany that the old one), this from france I have find many that is leaking from new, 2 have had contact from pin 7/15 to ground in the MPS, I like better kvality made in Germany.
Yes I know there is 3 adjusting screw on the MPS and have no problem to handle them so I get the same value as orginal. and I use the same test equipment on testing orginal not open that I use to adjust my MAP, so no differanse.
her is a quik movie that show a test of a orginal 0 280 100 015 that is not open after bosch make it. not much differance from my MPS that I have in my car, my MPS in my car have little lower inductanse on max load 1,50 on my and this have 1,55 that will use more fuel than my rebuilded MAP corect?
I take I quik test on my test stand today and can confirme that you have right Volker that the 500-600 ms value is not real value readed from the injectors.
I take compressed air from my air compressor redused to ca.1bar supplayed to the fuelrail on the test stand, before the fuel rail I mont a valve so I can adjust the air flow to the fuel rail, than I start the test stand and have ca.2000rpm and 0InHg to MAP and read ca.16ms open time on injector, than I adjust the air pressure in the fuel rail to ca. 0,5bar in fuel rail and after that I pump vacuum to the MPS to I get the 500-600ms reading on the intrument, if this was real value the pressure in the fuel rail will go down, but it not, so than I know that the value is not real, so I must test more and see if I can remove this wrong readings.
mvh. Knut Åge
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