Ok. I have a 90 DX DPFI. I have a 99 LS obd2 motor I want to put in. can I use LS 90-93 obd1 engine harness. 95 LS obd1 distributor. 95 LS obd1 alternator. 97 LS complete intake manifold. 97 GSR flywheel. and a 93 b18 valve cover. and when I do DPFI to MPFI I will use the 93 LS engine harness for parts? and then after the wiring is all done do I use a ECU jumper for obd0 to obd1?
this is my first swap so it would help alot if you can help

 

ummm some help?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote">Ok. I have a 90 DX DPFI. I have a 99 LS obd2 motor I want to put in. can I use LS 90-93 obd1 engine harness. </TD></TR></TABLE>

No, you have to reuse your stock harness and do the mpfi conversion. No integra harness will work in your car.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote"> 95 LS obd1 distributor. 95 LS obd1 alternator.</TD></TR></TABLE>

Yes. You will need to change the distributor plug on the harness for an obd1 plug.
The alternator plugs are the same.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote"> 97 LS complete intake manifold. </TD></TR></TABLE>

Yes. You'll need to put the obd2 injector plugs on your harness.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote"> 97 GSR flywheel. </TD></TR></TABLE>

Yes. Its the same as an Ls flywheel.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote"> and a 93 b18 valve cover. </TD></TR></TABLE>

The older valve cover will work on the newer motor, but I believe you will have to plug a hole in the valve cover, since the pcv valves are in a different spot, or something. I did this like 5 years ago, so I cant remember exactly.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote">. and when I do DPFI to MPFI I will use the 93 LS engine harness for parts?</TD></TR></TABLE>

You need the distirbutor plugs and fan switch plug off of the obd1 harness, but you'll need the injector plugs off of an obd2 harness.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupraRXZ &raquo;</TD></TR><TR><TD CLASS="quote"> and then after the wiring is all done do I use a ECU jumper for obd0 to obd1?
</TD></TR></TABLE>

Yep, an obd0 to obd1 jumper harness(along with an obd1 ecu, of course), which should include the wiring for the 4 wire o2 sensor.