Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

What ECU for LS swap in '99 Civic?

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Old May 16, 2011 | 01:42 PM
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Default What ECU for LS swap in '99 Civic?

whats up fellas, been a while since ive been here,ne way im thinking of trading my 93 talon for 99 civic si. the friend im trading with blew the b16 up and got a 94 ls motor for free and put it in it, knowing what i know i thought the engine harness had to be changed but he said everything hooked up but it need a ecu, what ecu should i run for it, i was thinking a p74 but i havnt been around a honda in a while. how hard will this thing be for me to get running. the talon runs and drives like new with no problem and a nice body, the si is clean inside and out and miss my hondas. thank u for any advice

Last edited by 94EG8; May 16, 2011 at 02:09 PM.
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Old May 16, 2011 | 01:52 PM
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Default Re: complicated question

OBD2 P75 ecu
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Old May 16, 2011 | 01:54 PM
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Default Re: complicated question

Originally Posted by tlarimer
OBD2 P75 ecu
the p75 will work even though its an obd1 motor?
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Old May 16, 2011 | 02:10 PM
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Default Re: What ECU for LS swap in '99 Civic?

As long as he kept the original 99 Civic Si engine harness, I would get an OBD2 P75. And the P75 was available in OBD1 and OBD2. Know that I think about it, being a 99, you may need a OBD2B ecu.
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Old May 17, 2011 | 10:10 AM
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Default Re: What ECU for LS swap in '99 Civic?

thank u for answering me, i think the ob2b is correct bc its for manual transmission i believe, i got a friend sending me one so i can at least get the si running, im kind of skeptical about trading as my talon runs and drives like new
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Old May 17, 2011 | 12:50 PM
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Default Re: What ECU for LS swap in '99 Civic?

yo sup man, im doing the same swap with a 95 integra motor on a 99 civic ex.did u change the ignition for a 99 integra? or did the ls one fit.
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Old May 17, 2011 | 12:54 PM
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Default Re: What ECU for LS swap in '99 Civic?

i know the injectors got to go so im putting the y8 injectors on sence they have the same fuel pressure.
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Old May 17, 2011 | 08:08 PM
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Default Re: What ECU for LS swap in '99 Civic?

Originally Posted by nicolas1320
yo sup man, im doing the same swap with a 95 integra motor on a 99 civic ex.did u change the ignition for a 99 integra? or did the ls one fit.
i traded a talon for the civic, it was an si model so the stock harness was used, and im not sure about the distributer, i havnt been been through the car all the way yet bc i just got it
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