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im swapping a de in my 3 but have a few questions. the de is a auto tranny from a 626 so will the flywheel from my k8 work? the 626 is a 96 so im goin from a obd1 car to a motor with obd2 wiring harness, obviously im gonna have problems but do i need to do? im gonna have more questions but right now this is all ive got. ive been searching and answered some questions but the info is scattered and im in need of this info. thanks.

K8 flywheel will be perfect, just make sure you machine it first if your doing a new clutch.

It doesn't matter if the motor is from a obdII car, its the same as the obdI motors, the only difference is that it will have one less coolant sensor on the filler neck. You can either swap coolant necks from ur k8 or you can remove ur extra sensor from your k8 and drill and tap into the coolant neck on the DE. If you don't install the extra sensor then your fans will be on all the time, that's it.

Use your k8 disty, alternator and all that as well. Just use the barebones de block and you will be ok

Use your K8 manifolds the De one is different to allow for the extra O2 sensors. If you car is a 92-93 and you need the extra coolant sensor just drill the flat on the DE coolant neck. It's real easy to do just use a shop vacd to suck out all the metal bits so they don't get down into your coolant system. If you press me I can come up with the tap size you'll need as well.

thanks for the help.

do i use the k8 harness or will i need to use de harness? if you have the tap size it will save me a little time. again, thanks.

The advice given is so you can use the K8 harness. This assumes you'll either reuse the K8 ecu and vaf or upgrade to a DE ecu and vaf. The ecu should be from an obd1 DE.

you cannot use the DE harness.

all ECU, VAF, and disties plug into both harness just fine, but disty wiring may change depending on your combination. use the wiring diagrams to make sure your disty signals are going to the right pins, and getting power in the right pins, etcvia wiring diagrams.

since ive got obd2 swap ill prolly use the k8 maf and ecu but would it be better to find a obd1 de ecu and maf? does the de ecu plug in with no problems or is there wiring envilved? id like to do this right the first time cause ive been missing my 3. thanks guys.

You have an OBDI mx, right?
your motor came from an OBDII car?

use your OBDI harness, and find an OBDI KL ECU and (OBDI if it matters) DE VAF, and keep your MX disty.