I just picked up a 90 dx hatch. It has a si cable trans and a complete 94 z6 engine (valve cover to oil pan.) I have a p28 ecu, and a jumper harness.

How can I tell if I have a dpfi obd0 to obd1 jumper harness or better yet the correct jumper harness?
Anyone happen to have ecu pinouts for both ecu's handy?
Anyone happen to have saved a writeup that was done for this particular mess? I have been searching for hours and can only find mpfi obd0 to obd1 writeups.

 

to tell if its been converted look at the factory harness under the ecu cover. it should have 4 extra wires spliced into it. 2 additional injectors and 2 wires for the dizzy. thats for dp to mp .now for obd0 - obd1 look at where the ecu and harness meet. the jumper is gonna look outta place between those two items. also look for the 4 wire o2 and grey square dizzy plugs.. all obd1 items

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 143MYVTECEF &raquo;</TD></TR><TR><TD CLASS="quote">to tell if its been converted look at the factory harness under the ecu cover. it should have 4 extra wires spliced into it. 2 additional injectors and 2 wires for the dizzy. thats for dp to mp .now for obd0 - obd1 look at where the ecu and harness meet. the jumper is gonna look outta place between those two items. also look for the 4 wire o2 and grey square dizzy plugs.. all obd1 items</TD></TR></TABLE>

I find it has a xenocron jumper harness, checked his site and it says it must be converted to mpfi first. I dont have the cars stock ecu, but it certainly does not look like anything has been altered. I have a better chance to look at everything tomorrow so I will post up my findings.