motor swap for 90 civic

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09-08-2009 | 07:23 PM

biga

Thread Starter

Junior Member

Joined: Sep 2009

Posts: 14

From: cape girardeau.mo

motor swap for 90 civic

k i have been checking all over for an answer and yet to get one so here goes:will a d16a6 motor bolt up retaining my wiring harness from a d15b1 with no problems

09-08-2009 | 07:25 PM

94civichatchback

Chubby Chaser

Joined: Dec 2007

Posts: 4,679

From: whitwell,Tn 37397

do you have dual point?

09-08-2009 | 07:45 PM

biga

Thread Starter

Junior Member

Joined: Sep 2009

Posts: 14

From: cape girardeau.mo

yes!!!!

09-08-2009 | 07:49 PM

Hailchristian

HCF Member

Joined: Nov 2006

Posts: 1,693

From: San Luis Obispo, Ca

You will need to wire for multiport fuel injection...

http://fourthgenhatch.net/mpfi.html

read up.

09-08-2009 | 07:50 PM

94civichatchback

Chubby Chaser

Joined: Dec 2007

Posts: 4,679

From: whitwell,Tn 37397

if you use the d16a6 with its manifold then you will need to do a dpfi to mpfi.
your harness only has 2 fuel injectors. the d16a6 has 4. you will also need a 88-91 si ecu pm6

Name: MPFIwiring.gif
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Name: MPFIwiring.gif
Views: 29
Size: 79.3 KB

09-08-2009 | 07:54 PM

biga

Thread Starter

Junior Member

Joined: Sep 2009

Posts: 14

From: cape girardeau.mo

thanks for info but now what motor needs no wiring or any mods that will do better than the pos d15b1?

09-08-2009 | 08:00 PM

94civichatchback

Chubby Chaser

Joined: Dec 2007

Posts: 4,679

From: whitwell,Tn 37397

nothing with out the mpfi conversion. its not really the motors fault its the intake manifold thats where the pos comes in. if/when you do the conversion you will see a big difference.

09-08-2009 | 08:04 PM

biga

Thread Starter

Junior Member

Joined: Sep 2009

Posts: 14

From: cape girardeau.mo

so when not if i do the conversion are there plenty of upgrades for the motor and will the tranny line up with what i have. its a 5 spd and i have the 4 spd and its coming out of a 91 crx.