View Full Version : mk1 ecu pinout
06-14-2006, 10:15 PM
as the title says. i would like to have a wiring diagram for a 4me mk1 ecu. or all the wiring diagrams would be even better, but just the ecu would be fine. tia
06-14-2006, 10:52 PM
I have yet to find any MKI electrical personaly.AJ ?? Chris ??
06-15-2006, 02:01 AM
Shawn & Keseki,
Partial good news!!!
Electrical wiring diagrams are in the 79 - 81 Haynes MKI manual (I don't even want to know what the crappy 79 - 92 Haynes manual has). The Haynes MKI manual has ALL THREE wiring diagrams for 79, 80 & 81.
ECU pinouts: "Hopefully" the pinouts are the same between the 79 & 80 4ME. Best news: Found the ECU pinouts in the 4ME EFI supplement. I also confirmed that the 5ME EFI supplement also has the ECU pinouts.
Still trying to figure out how to use my GF's scanner. Digi cam is more convenient, but I won't get it back till late Thursday night.
06-15-2006, 11:11 AM
fantastic! the pin out will make the project much easier :)
06-16-2006, 04:03 PM
My GF is back home & so is the digi cam!!!!
From the EFI manuals. 4ME ECU pinout: For clarity purposes, this is from the "connector plug" side, not the ECU side.
From doing a side by side comparison of the pictures, it looks like the 5ME ECU pinout is identical!!!
06-16-2006, 06:07 PM
sah-weet, thanks alot
Keseki, there are a number of 4M, 5M EFI supplements on eBay if needed.
I don't have any manuals for Mk1s left in the garage. I sent them all to Poorman and Lonestar.
06-16-2006, 10:18 PM
Arch,I found those manuals the night I posted last.Yes,I'm bidding on the electrical supplement ;)
06-17-2006, 10:11 PM
I have the EFI electrical wiring if somebody need a copy let me know. I can take a photo and send it on an Email.
06-20-2006, 08:20 PM
does it have a chart to say wat all the abbreviations are? =\
06-21-2006, 03:18 AM
Just got done......... looking at ALL 100 pages....... in the 4ME EFI supplement..
Best I can come up with, is the wiring diagram for the EFI system. Will have to try & get a picture of it. The pic will be rather large....
Can I just shoot you now?????:eek4dance:
100 pages..... :mm_twak:
06-21-2006, 05:11 PM
=\, dont worry about it then ill buy the haynes manual and look at it myself. i dont want u to do work on my part. thanks anyways, theres like 4 or 5 of those pin's that im wondering wat they are. ill just post them up and see if anyone has a clue perhaps. they're:
(+B) - Main relay or battery positive from fuse??
(Vb) - Has a b in it, so same thing as above
(TL) - No clue on this one
(PSW) - thinking neutral safety switch
06-22-2006, 09:12 PM
Since I'm in a chipper mood & have time to kill... I snapped a pic of the EFI wiring diagram from the 4ME EFI manual..
WARNING.... Large picture!!!!!
06-22-2006, 09:45 PM
Wooot !!! Just won a factory 79 electrical supplement on E-bay.I'll let ya know when it gets here ;)
edit... hell chris's diagrahm show what your looking for.
06-23-2006, 03:53 AM
doesnt alldata have all of this too?
06-23-2006, 05:24 PM
thanks a ton chris. that is what i needed badly
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