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ECU Pin connections
Does anyone have a link to a picture showing the pin connection numbers on the ECU Harness and or ECU
Thanks J
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Jaime O. Thank god I crashed or i would never have owned a porsche 83 944 daily driver (clutch and tt time) 85 325e BMW T-boned R.I.P. |
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11-01-2006, 09:57 AM
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Here ya go. Early Schematics are pretty bad but..
 
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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11-01-2006, 10:59 AM
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Thank you very much. now i can finish my diagnosis
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Jaime O. Thank god I crashed or i would never have owned a porsche 83 944 daily driver (clutch and tt time) 85 325e BMW T-boned R.I.P. |
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11-01-2006, 11:23 AM
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ok, i thought i had it. but i'm lost now. i'm trying to find the pin 13 on the ECU harness. to see if my DME Temp sensor is good, but i have more pins on the harness then i do in that diagram. I thought i saw an ECU harness and it had all the pin conections pointed out somewere i just can't seem to find it anymore.
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Jaime O. Thank god I crashed or i would never have owned a porsche 83 944 daily driver (clutch and tt time) 85 325e BMW T-boned R.I.P. |
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11-01-2006, 11:59 AM
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Lucky Number 13 is solid Yellow. I think It goes by coulombs with top left #1 (should be Solid Green) Top to bottom then left to right. But not certain and don't have one in front of me. Temp Sensor is in the passenger side of oil pan. I'll try to post something from a later better picture in a while if someone else doesn't chime in.
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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11-01-2006, 12:08 PM
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Ok, took me a while but heres a Picture Of DME Harness. Let me know if my numbers are wrong
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Jaime O. Thank god I crashed or i would never have owned a porsche 83 944 daily driver (clutch and tt time) 85 325e BMW T-boned R.I.P. |
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11-01-2006, 12:35 PM
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Not sure about your numbering. You can go by wire colors (splice and trace to pin number with multimeter) I have pins 5, which looks like it arc'ed on your picture, and 28 as DME Ground (brown)
Maybe check/clean ground lug really good by relays on side wall. Black plugs= not good. Might wanta crack the DME and check for Charcoal. Might Also check Resistance across Temp sender plugs. (if it's near zero then you know your problem)
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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11-01-2006, 01:14 PM
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OK I Just Verified your pin Numbering as Good!
If the plug is arc'ed black and the brown wire of 1.5mm thick, is not melted. That plug itself could be part of problem. Maybe Clean it up and see if the plug goes good to ground?
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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11-01-2006, 01:33 PM
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Thanks for all the help by the way Jim.
Now all i got to do is figure out why i idel so high sometimes. Well atleast i think the sensors i checked are good ( DMM is too sensitive) Anybody know what the resistance is for a good ground? .4 ohms or less?
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Jaime O. Thank god I crashed or i would never have owned a porsche 83 944 daily driver (clutch and tt time) 85 325e BMW T-boned R.I.P. |
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11-01-2006, 06:23 PM
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