Wiring Harness Questions
05-02-2010, 06:00 AM
#1
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Wiring Harness Questions
OK, so I just pulled an LS swap out of a 99 Integra with an automatic transmission. I was planning to put it into my 92 Civic VX. Here are my questions:
1. Can I use the automatic wiring harness or do I have to get a manual one?
2. Can I use the OBD2 harness since everything else is OBD2 on the engine. Will it plug into the OBD1 firewall plugs?
Thanks for your time guys.
1. Can I use the automatic wiring harness or do I have to get a manual one?
2. Can I use the OBD2 harness since everything else is OBD2 on the engine. Will it plug into the OBD1 firewall plugs?
Thanks for your time guys.
05-03-2010, 01:11 PM
#5
Honda-Tech Member
Re: Wiring Harness Questions
The auto vs manual doesn't matter, you'll just have the extra plugs for the automatic stuff.
The engine harness will plug in, but you have to do a little wiring. Since the VX has a 5-wire O2 sensor, you have to rewire it to use a 4-wire O2 sensor (that most other ECUs look for). https://honda-tech.com/forums/hybrid-engine-swaps-18/complete-obd1-b18c1-into-civic-vx-wiring-instructions-644434/
Also you may need an ECU conversion harness, depending on what ECU you plan on using. Your best bet would be to get a '94-'95 P75, or a '92-'93 P75 will also work. You could also use a '92-'95 Civic ECU, if you get it chipped with the P75 base map. Anything newer than those years, and you're going to have to use a conversion harness.
The engine harness will plug in, but you have to do a little wiring. Since the VX has a 5-wire O2 sensor, you have to rewire it to use a 4-wire O2 sensor (that most other ECUs look for). https://honda-tech.com/forums/hybrid-engine-swaps-18/complete-obd1-b18c1-into-civic-vx-wiring-instructions-644434/
Also you may need an ECU conversion harness, depending on what ECU you plan on using. Your best bet would be to get a '94-'95 P75, or a '92-'93 P75 will also work. You could also use a '92-'95 Civic ECU, if you get it chipped with the P75 base map. Anything newer than those years, and you're going to have to use a conversion harness.
05-03-2010, 02:42 PM
#6
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Re: Wiring Harness Questions
The auto vs manual doesn't matter, you'll just have the extra plugs for the automatic stuff.
The engine harness will plug in, but you have to do a little wiring. Since the VX has a 5-wire O2 sensor, you have to rewire it to use a 4-wire O2 sensor (that most other ECUs look for). https://honda-tech.com/forums/showthread.php?t=644434
Also you may need an ECU conversion harness, depending on what ECU you plan on using. Your best bet would be to get a '94-'95 P75, or a '92-'93 P75 will also work. You could also use a '92-'95 Civic ECU, if you get it chipped with the P75 base map. Anything newer than those years, and you're going to have to use a conversion harness.
The engine harness will plug in, but you have to do a little wiring. Since the VX has a 5-wire O2 sensor, you have to rewire it to use a 4-wire O2 sensor (that most other ECUs look for). https://honda-tech.com/forums/showthread.php?t=644434
Also you may need an ECU conversion harness, depending on what ECU you plan on using. Your best bet would be to get a '94-'95 P75, or a '92-'93 P75 will also work. You could also use a '92-'95 Civic ECU, if you get it chipped with the P75 base map. Anything newer than those years, and you're going to have to use a conversion harness.
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