I am a bit embarrassed to have to ask this but...

I was cleaning the electrical connection to my MAP sensor this afternoon ('73 450SE D-Jet). After I was done, I realized that the electrical connector from the wiring harness can go into the MAP sensor either way! The harness connector is "D-shaped", but the connection on the MAP is not D-shaped. Would someone please tell me which way is the correct way up?

Many thanks,
Joe

You shouldn't have to twist the wires.

__________________
Pierre Hedary 1985 280SEL, 1970 111.026 in progress
Mercedes technical advice hotline: 407 765 2867
[servicing older Mercedes in the state of Florida with competence and passion].

From the standpoint of an honest MB technician, Vegetable oil is a threat to your diesel engine's mechanical integrity.

I can look at mine, what color wires do you have ?

__________________
Ron
2015 Porsche Cayman - Elizabeth
2011 Porsche Cayman - Bond,James Bond
Sadly MERCEDESLESS - ALways LOOKING !
99 E320 THE Queen Mary - SOLD
62 220b - Dolly - Finally my Finny! Sadly SOLD
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
19 BMW X5 - Heaven on Wheels
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace

Thanks Ron. Looking to the fender from the engine side, the current order of the wires is:
Engine - Black/White - Red/White - Blue/White - Green/White - Fender.

Joe

To be honest I am pretty sure it doesn't matter, the outside wires are 1 loop and the inside the other loop, and it measures differences in impedance - nothing that requires current to flow in 1 direction or the other.

__________________
Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k

I went out and looked , my MAP is mounted perpendicular to fender , large end pointing to engine , the wire connector facing fender - drivers side --the wire on the side pointing to the radiator is black -white - wire closest to firewall green white

__________________
Ron
2015 Porsche Cayman - Elizabeth
2011 Porsche Cayman - Bond,James Bond
Sadly MERCEDESLESS - ALways LOOKING !
99 E320 THE Queen Mary - SOLD
62 220b - Dolly - Finally my Finny! Sadly SOLD
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
19 BMW X5 - Heaven on Wheels
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace

Thanks very much Ron and Tom.

It looks as if I have my connection inserted the right way :-) But it may not matter! That's one thing less to worry about.

Joe