Thats the plan in a nutshell.

I am attempting to use my pm6 to run this 4g63. I don't think there will be much trouble when it comes to coolant temp sensor and things of that nature. I am using a d16z6 sohc throttle body because 2 of the 4 bolts actually line up with the 4g intake. (that solves my tps and map sensor problem) Here is the challenge: utilize the 2 coil packs and ignition module from a 1990 eclipse.
ps, the honda distributor doesn't fit well on the mitsu head.

I have pulled apart the cam sensor and discovered a couple things. It uses an optical pickup with 2 separate channels. One is for the TDC signal (4 slots) and the inner 2 slots (one longer than the other) send cyp and ckp signals.

Upon inspection of the obd0 mpfi distributor innards...I realize that I need those same signals but they're not exactly available...quite yet. The mitsu infers the ckp and cyp from 2 slots while the honda dist. utilizes 3 separate sensors.

The plan is to create a new disc(anyone who has seen this 50mm disc inside a cam sensor should be able to visualize" with 16 slots on the outer ring(cyp) and one in the center ring(ckp). Since I need 3 signals... I will have to use an OBD2 crank angle sensor from a newer 4g63 and modify that disc so it no longer has one long slot(about 15 minutes on the clock) to 2 short slots.(crank spins 2X while cam spins 1X thus creating 4 pulses per(tdc))

I think this may just be crazy enough to work.

PROBLEM: This is where i need some help. I see that there are 2 signal wires from the mitsu ECU that go to each coil pack and tell it when to fire. It fires 1 and 4 together....and 2 and 3 together. The Pm6 simply has one ignition output wire and of course determines ignition advance with said wire. I NEED some logic board or something similar, maybe even a mechanican solution, to switch the ignition output between both coils. Creative minds do apply. I've been milling over this for a while now and I figured that the creative mass of honda-tech may be my way out.

On a separate point, I have already fabricated the engine mounts and the motor sits in the engine bay surprisingly well. I tried some honda inboard CV joints and...they fit like a champ in the dsm trans. Tonight I will finish running the shift cables through the firewall and move onto installing a couple other odds and ends.

Thanks in advance, I know I'm a "noob" however I've been pretty hands on with ecu stuff for a while...mostly OBD0-1 and 2-1 conversions and most recently converting a obd2 mirage mpfi/map to run a 92 eclipse ecu with all appropiate MAF and IACV control.


~Alex

 

I highly doubt the Pm6 will work on the 4G63. You'd be better off running the Shitsubishi wiring harness into a standalone ECU, then the only problem you'll face is wiring up the honda ignition system to whatever standalone you use and getting the gauge cluster to work.

Oh, and don't forget, the honda motor runs counter-clockwise and the shitsubishi runs clockwise.

 

There may be useful information here: http://forum.pgmfi.org/viewtopic.php?t=5033

 

Oh, I've read that one thru and thru. Useful information.... Still looking for imput on the logic board necessary to separate the ignition output.

~Alex

 

just make an adapter plate with a gear that will turn the honda distributor the correct way. it will work. I've started a honda engine with nothing but fuel injectors and distributor plugged in, granted it wouldn't stay runnin gbecause it had no map sensor, but it works.

 

Cmon man, I know there is some fabrication that may be able to make it work but I was trying to come up with a more intelligent solution. It looks like I'll be dealing with either a demultiplexer, tri state buffer or a microprocessor. I don't know if a microprocessor will be worth it, thats like giving a haircut with a chainsaw. I realize that they're inexpensive but I don't know if it's worth it.

~Alex