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DOHC zc. Need a wiring harness

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Old 03-15-2010, 06:59 PM
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Default DOHC zc. Need a wiring harness

Which harness should i get since I have the engine tranny and 89 integra ecu already just need to get a wiring harness.
Old 03-15-2010, 07:00 PM
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Default Re: DOHC zc. Need a wiring harness

you use your existing harness and convert to mpfi...!!!
Old 03-15-2010, 07:09 PM
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Default Re: DOHC zc. Need a wiring harness

I dont have an existing one which is why im posting the thread...

Is there any harness I can buy that is already mpfi? thanks for the help
Old 03-15-2010, 10:25 PM
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Default Re: DOHC zc. Need a wiring harness

bump. been searching but cant find out what kind of harness i should get if i dont have one at all

old harness the previous owner failed at converting it to mpfi and was all cut up so i just took it out
Old 03-15-2010, 10:28 PM
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Default Re: DOHC zc. Need a wiring harness

go to the junk yard and pull one off a same model civic as yours for $30...you cant just slap on a mpfi harness if you car wasn't mpfi equipped...!!!
Old 03-15-2010, 10:39 PM
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Default Re: DOHC zc. Need a wiring harness

Damn really? I was really hoping there was a harness i could get that i could just straight plug and play with no converting needed. This is bad news lol
Old 03-15-2010, 10:42 PM
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Default Re: DOHC zc. Need a wiring harness

why spend $100+ on a converted mpfi wire harness when you can buy a stock one and convert it to mpfi yourself for pennies on the dollar...if you really dont care about the money then here you go...!!!
http://inlandempire.craigslist.org/pts/1641177262.html
Old 03-15-2010, 10:49 PM
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Default Re: DOHC zc. Need a wiring harness

can you please explain to me why you cant put an mpfi engine harness in if the car was dpfi? I need to learn this stuff I feel so dumb
Old 03-15-2010, 10:56 PM
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Default Re: DOHC zc. Need a wiring harness

you can put a modified mpfi harness if the harness was from your particular model because it will mate up with the cabin harness...you cant put a si one in a dpfi equipped vehicle because it wont match up with the rest of the wiring...!!!
Old 03-15-2010, 11:02 PM
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Default Re: DOHC zc. Need a wiring harness

So I cant use an engine harness from a mpfi engine that was in a si civic 88-91?

And if your saying i can but would need to modify it...what do i need to modify?
Old 03-15-2010, 11:07 PM
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Default Re: DOHC zc. Need a wiring harness

no you cant...get yourself a dx,lx,std ect harness that matches your vehicle and convert to mpfi...search the FAQ or google on dpfi to mpfi conversions since there are numerous write-ups and explanations to all your questions...!!!
Old 03-15-2010, 11:12 PM
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Default Re: DOHC zc. Need a wiring harness

Originally Posted by BiG ChOr!Zo
no you cant...get yourself a dx,lx,std ect harness that matches your vehicle and convert to mpfi...search the FAQ or google on dpfi to mpfi conversions since there are numerous write-ups and explanations to all your questions...!!!

x2 I believe it's 4 extra wires That you need to add.
Old 03-15-2010, 11:21 PM
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Default Re: DOHC zc. Need a wiring harness

ok thanks alot for helping me out man I would have been lost.
Old 03-16-2010, 06:51 AM
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Default Re: DOHC zc. Need a wiring harness

wiring instructions for OBD0 JDM DOHC ZC into 88-91 CRX DX or 88-91 Civic DX and STD:
Attached Images
File Type: pdf
DXtoZC.pdf (46.9 KB, 668 views)

Last edited by jlicrx; 03-16-2010 at 07:41 AM.
Old 03-16-2010, 07:06 AM
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Default Re: DOHC zc. Need a wiring harness

+ the dohc zc has a cpm.(Cam position sensor?) I think. Do some research, ie google. Also hit up monotech. He has good harnesses. Its just gona cost u. Or u could go to the junk yard and get a harness like the sausage man said
Old 05-02-2016, 03:07 PM
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Default Re: DOHC zc. Need a wiring harness

5 year old thread revival lol

Just bought a race car its a CRX with a ZC swap that the owner could not get running
engine turns over but there is NO spark to the spark plugs
Coil is good and has power
I have a code 10 Code 13 and Code 20 all I "think' from this guys hackjob of wiring

what harness do I need to get and what 4 wires will I have to add
Old 05-03-2016, 11:12 AM
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Default Re: DOHC zc. Need a wiring harness

Originally Posted by Civic Racer X 7
5 year old thread revival lol

Just bought a race car its a CRX with a ZC swap that the owner could not get running
engine turns over but there is NO spark to the spark plugs
Coil is good and has power
I have a code 10 Code 13 and Code 20 all I "think' from this guys hackjob of wiring

what harness do I need to get and what 4 wires will I have to add
Taken from the the other thread that you've created before you bumped up this dead thread:

Originally Posted by jlicrx
how much you need to modify depends on whether the original harness was for a DPFI car or MPFI car

DPFI - you need to use the original DPFI engine harness and add wiring for the injectors, add injector resistor box and add wiring for the cylinder sensor

MPFI - you need to use the original MPFI engine harness and change the connector at the distributor and extend the wires for the cylinder sensor, which is on the end of the exhaust camshaft
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