what harness should i buy to do my boys LS swap.

 

HERES the deal. hes got a ls swap with out the harness.. what does it need?

he uses 90-93 axles correct

 

si or dx hatch? you use the stock engine harness for the hatch if its si but if you dx or std you gotta do the mpfi conversion then everthing should plug in you might have to extend some wires i did and yea 90-93 teg axles, teg throtle cable and clutch cable. staying obd0 right?

 

i think he wants to go obd1

 

you still use the stock harness to the car but its gonna be more work to go obd1 you gotta extend the fan switch wire and extend a couple more like map sensor plus you gotta get the conversion harness. i would stay obd0 its easyer and cheaper.

 

butthe plugs on the ls motor are obd1.. so??

 

The only plug thats different is the dizzy plug its a gray plug... but you can easily trade or sell that dizzy to get an obd0 dizzy.. timing and **** stay the same.. plus you can run the obd ls ecu

 

my bad i mean the obd0 ecu.. ummm PR4

 

in order to go obd1 in my EF, i just need a jumpe harness and p75

 

bump

 

You can use your car's original harness, just de-pin and repin your wires. If you order the conversion harness from Boomslang.us it has directions that tell you everything to do. If you're going with the 93 LS motor, get the OBD1 PR4 ECU. Make sure it's from the 92-93. 90-91 is OBD0, 92-93 is OBD1.

I don't think you can use the P75 unless you chip it...

 

p75 is obd1

 

There's a diff in P75 and PR4, but I don't not remember it. But I did my LS OBD1 swap with a PR4 and it worked great for about a week til the FPR started acting up, LoL.

 

you're also gonna need to run the wires for a 4 wire O2. For the dizzy you can repin it to the OBD1 plug or use a jumper harness. For the injectors you're gonna need to repin the OBD0 plugs to OBD1 or solder the OBD1 plugs on. And like above extend the fan switch from the back of the block of your old motor to the thermostat housing on the new motor.

 

I never had to extend my fan wires during my swap...?

I'm tellin' ya...go with Boomslang.us and get their jumper harness. It's the best prices for a damn good part...

 

i know bloomslang, but not what im asking

 

Then directly, what is your question...

 

i ran a p75 in my ls, it was fine

 

get a 92 or 93 integra harness and call rywire

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BLUE EH3 &raquo;</TD></TR><TR><TD CLASS="quote">in order to go obd1 in my EF, i just need a jumper harness and p75</TD></TR></TABLE> if the car is an SI your going to need the 93 integra harness and the si harness and make a hybrid harness of sorts (it's not the hard). cause rywire makes it easy, pm cause i have the exact same swap in my 90 hatch si.

 

yes you can use the p75, ive swapped from the pr4 to a p75 before and both work. i think its rywire that sells a dist adapter that allows you to go from obd0 to obd1 or 2. you will need to run wires for a 4 wire o2 sensor.

you will need to convert to obd1:
jumper harness
mpfi injectors and clips(depending if the car is an si or dx.)
4 wire o2
obd1 or 2 distributor
obd1 ecu, pr4 or p75