I've recently swapped a VX engine (D15z) into my EG coupe just to get it running for a bit while I wait for another swap.

Well, my problem is finding the source on the engine harness to connect the second black wire (+12v) to. The D15B didn't use pin A25, but A25 on the ecu does have a wire going into the engine bay, just havn't been able to find where yet. The HELM manual has come up shorter than a handicap bus for once on this. Or I'm just lost in diagrams lately haha

The O2 sensor plug from the VX has:

------------------
| wht | blk |
| grn | blk |
------------------

Row 1
white --> primary heated o2 signal (D14 on ECU)
blk --> o2 sensor heating element (A6 on ECU)

Row 2
grn --> sensor ground (D22 on ECU)
blk --> A25 or any +12v power source????

The D15B harness plug:

---------------------------------------------------------------
| yel / blk | blk | grn / wht | wht |
---------------------------------------------------------------
| (empty) | wht/blu | org/blue | org |
---------------------------------------------------------------

Row 1
yel / blk --> o2 sensor heating element (A6)
blk --> PGI Ground < 1 volt (A23)
grn / wht --> sensor ground (D22)
wht --> knock sensor

Row 2
empty --> self explanitory
wht/blu --> empty?
org/blue --> o2 sensor heating signal (D14)
org --> VREF (not used)


I've got D22, D14 and A6 wired up just fine. It's just this last wire....


Modified by EGJason at 7:25 PM 4/28/2007

 

bump for changes.....I explained it wrong the first time.....sorry

 

bump again!