engine swap help!!
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engine swap help!!
i have a 91 ef hatch and im putting a 99 ls motor in it and need to know if a 91 ef si engines harness will work with the motor.
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Re: engine swap help!!
no i havent started the swap yet. cause i dont have a engine harness for my ls. and i didnt wanna start it til i was sure that a ef si engine harness would work on an obd2 ls motor
#7
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Re: engine swap help!!
As others have said, the key is taking your original harness and adding subtracting as deemed necessary. Take your OEM harness and if necessary, add the MPFI extensions and then worry about extending the wires necessary to reach relocated sensors.
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Re: engine swap help!!
i know this is probably a stupid question for you guys but this is my first ef so i dont know much about them. but what is the mpfi that i need to wire? haha
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Re: engine swap help!!
I dont mean to thread jack but i seem to have a lil similar problem with my swap. if anyone can help out check out my profile under the bodyharness.
#16
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Re: engine swap help!!
No, you need to work with your factory harness unless you plan on rewiring the engine + chassis harness at the same time. If you are up for that, power to you, if not, work with what you have, in the end it usually saves time and energy.
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Re: engine swap help!!
What if i Have a 97 obd2 B18B1 ls and I have a harness for an obd0 B18A1 ls? would that plug right up to a crx si harness and the motor as well, without having to do any wiring?
#20
Re: engine swap help!!
the harness you have will plug right in and run the b18 as long as you get a obd0 dizzy, and remove the resistor box from the car. cut the wires going to ii and solder all 5 together. that will allow you to run obd1/obd2 injectors
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Re: engine swap help!!
Yeah i knew you had to change the injectors & dizzy wasnt sure about all the sensors, okay that makes since thanks. I have obd0 injectors i plan on running cus i dont wanna cut the harness, Do I need to leave the resister box there If I do. yes
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