i have a crx hf im swaping a b18a1. i know i need to use a crx si wiring harness since i have the 91 integra ecu.i heard it plugs right in. my question is which harness would i need the engine harness only or also the dash harness

please, any answers would be very appreciated thanks


Modified by crxb18a1 at 11:45 PM 7/23/2004

 

I believe that when i did mine i used the whole si harness with no changes or anything- i have the integra ecu..
oh you hafta change one plug on one sensor... i forget which one right now sry

 

Oh crap.... i had an si... MPFI... and i don't think the HF had that so i duno sry dude

read this post
https://honda-tech.com/zerothread?id=936115

that guy says the wiring is the same

 

thanks anyways

 

HF/si is the same wiring. everything should plug in or you might have to extend a couple of plugs. but use your hf wiring harness. I'm doing the same swap myself so I know.

 

but does the crx hf dash wiring harness plug into the si engine harness???

 

use the whole hf harness.

 

Yes, use the whole harness. I have that swap. The HF uses the EGR system which you just won't plug in. I didn't modify any lengths of wire. There is one sensor on the back of the b18 block, near the no. 1 cylinder, that you will not use. That is how i did mine and i throw no codes and it runs great. Good luck.

 

thanks guys i hope i got no more problems ill let you know how it goes

 

i just did the swap. if you have questions let me know.

 

Make sure you hammer the frame on the driver side to clear the alternator.

but yeah like everyone else said, use your HF wire harness.

 

yup, use the harness that's in YOUR car.

 

I have almost the same problem here. i have a b18a with s1 tranny axels clutch but no im wondering about the wiring and ecu i belive i have the stock wire harness from the orginal motor (its a 90 crx DX) i belive i have the stock harness and ecu what else do i need? do i need some OBD1 conversion unit or what?
I need help?

 

i have a 91 crx hf with b18a and s1 (b16 cable) tranny. I used crx si wiring harness and 91 integra axles and half shaft.

 

what ECU what mounts and what linkage did you use?

 

bump

 

i have no choice but to bump because this is the only thread on b18a into a crx

 

CRXH22, You will need to do some wiring if you don't already have a multi-point swap. If your engine is Pre-OBD, you can use your car harness and change the engine harness pluss the extra wires for the injector resistor box and two more injectors. You should probably take it to a shop if you can't do the wiring yourself. I used No-name brand mounts and chopped the integra linkage about 2 1/2 inches. I didn't pound in the frame to clear the alternator and it rubs during medium to hard cornering. Good luck.

 

what computer should I use is the PR4 a good one?
by using an Si harness will i need a to cut and do wiring. where do i shorten the linkage.

 

bump

 

well please help a newbie

 

pr4

 

i was not able to use the hf wiring harness cuz it was messed up some one hacked at it. but i do have an si engine wiring harness i know this harness bolts on to the hf dash harness however i dont now if all the pins are the same????
if any one has any info please im desperate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxb18a1 &raquo;</TD></TR><TR><TD CLASS="quote">i was not able to use the hf wiring harness cuz it was messed up some one hacked at it. but i do have an si engine wiring harness i know this harness bolts on to the hf dash harness however i dont now if all the pins are the same????
if any one has any info please im desperate </TD></TR></TABLE>
the HF engine harness is not the same as the Si harness - it will plug into the chassis harness, but will not work - the wires in the connectors are in different locations and some wires that are in the driver's side connector are in the passenger's side connector on the HF and vice versa

this is comparison of the wire locations for the driver's side connector

 

thanks would you happen to have the passenger side connector different and how would i go and fix it so it works
thanks i really apreciated