Progress update with some pretty pictures.

it's always an awesome feeling putting a motor where it doesn't belong. A while back a buddy and I crammed a 3.1L V6 under the hood of a 95 sunfire. Congrats on the swap.
 
The car is running much smoother now that the exhaust is hooked up, and I fixed a vacuum leak. I'm driving it to work tonight for the first time as she goes back into DD status as of today.

....and donating your car to me ;)
I think there would be too much cross border taxes and paperwork (ugh)
 
Super schaweet!
Cannot wait for the complete write up... and maybe some vid or at least more pics??
Glad to see someone get this idea up and running...
If I ever manage to blow my motor, I'll jump on this bandwagon in a heartbeat.
 
Don't know 5% of the things you need to do/know for this swap, but I think it's safe to say awesome work! (bowdown) Waiting for more pics/vids!
 
Filled up again today. Arg, 15.3 L/100Km. About 15mpg. She needs a tune up I'd say.
 
So...can you explain to me how you are doing engine management on this thing? Still using both ECUs? Gauges work and all? I need to get cracking on mine ASAP!!
 
So...can you explain to me how you are doing engine management on this thing? Still using both ECUs? Gauges work and all? I need to get cracking on mine ASAP!!

Yes, both ECUs.. Both wiring harnesses fit through the stock firewall hole. There is room under the glovebox area to zip tie the second ecu in place where you can't see it.

As for wiring, It's not 100% right now (I don't have the factory temp or tach gauges working yet). Other than that, I just tapped all the necessary wires for the KL ECU from various locations (only one so far from the P5 ECU, hopefully another when I figure out the temp gauge).
The spedo and reverse sensors I've just wired up to the factory harness, so they work fine.
Now as for the alternator, I think the P5 one may bolt into place (they look the same) but I used the KL one with the internal regulator, the plug for the alternators are the same, but I didn't connect the factory plug to the new alternator, as I was afraid of blowing the factory PCM. I just ran a fused (30A) wire to the exciter (I think) side, as the P5's works totally different. The charge light is on on the dash however, so that's another thing I need to get figured out.
I ran the oil sensor to stock harness, and it is working fine as well.
I also took out the factory fuel pump relay, and made a little shorting wire to make it run full time when the key is in the on position.
Don't forget to connect the thick blue wire from the disty to +12 (on pos.) as well (it comes out at the ECU, I ran mine to the back of the interior fuse block, and fused it (30A I think, not sure))


I plan on putting up a more detailed write up here in a while when all the kinks are ironed out. I'll include pinouts, and where each necessary wire needs to go (honestly to get it running, it's only about 4 wires to the KL ECU(plus all the sensors and connectors obviously))

I'll answer any specific questions you got, just let me know. Otherwise the write up will arrive within a couple weeks.
 
Yes, both ECUs.. Both wiring harnesses fit through the stock firewall hole. There is room under the glovebox area to zip tie the second ecu in place where you can't see it.

As for wiring, It's not 100% right now (I don't have the factory temp or tach gauges working yet). Other than that, I just tapped all the necessary wires for the KL ECU from various locations (only one so far from the P5 ECU, hopefully another when I figure out the temp gauge).
The spedo and reverse sensors I've just wired up to the factory harness, so they work fine.
Now as for the alternator, I think the P5 one may bolt into place (they look the same) but I used the KL one with the internal regulator, the plug for the alternators are the same, but I didn't connect the factory plug to the new alternator, as I was afraid of blowing the factory PCM. I just ran a fused (30A) wire to the exciter (I think) side, as the P5's works totally different. The charge light is on on the dash however, so that's another thing I need to get figured out.
I ran the oil sensor to stock harness, and it is working fine as well.
I also took out the factory fuel pump relay, and made a little shorting wire to make it run full time when the key is in the on position.
Don't forget to connect the thick blue wire from the disty to +12 (on pos.) as well (it comes out at the ECU, I ran mine to the back of the interior fuse block, and fused it (30A I think, not sure))


I plan on putting up a more detailed write up here in a while when all the kinks are ironed out. I'll include pinouts, and where each necessary wire needs to go (honestly to get it running, it's only about 4 wires to the KL ECU(plus all the sensors and connectors obviously))

I'll answer any specific questions you got, just let me know. Otherwise the write up will arrive within a couple weeks.

Cool and thanks a lot. I will definitely use the writeup unless I brave up and try to do it my own way(and possibly set sail for fail, LOL). It'll be a couple of weeks before I get the KL ready to go in the P5 anyway. :(
 
The charge light is on on the dash however, so that's another thing I need to get figured out.
simple fix - 1.5k resistor on the P5 air temp line should make that go away (common problem with aftermarket set ups, as soon as you cut the air temp line the battery light comes on.... by allowing the P5 ecu to read constant resistance, it thinks its still getting a temp reading and everything is ok).

The temp gauge side of things is going to be a little harder - you can't have 2 computers reading off the one temp sensor due to a "sum of resistance" problem. You can isolate both circuits using diodes but you get a voltage drop problem. You can of course use parallel resisters to "reinject" the voltage lost with the diodes, but this introduces bias into the readings. Best bet is to run 2 seperate temp sensors...one for the instrument cluster (P5 ecu) and one for the KLZE ecu.
 
The temp gauge side of things is going to be a little harder - you can't have 2 computers reading off the one temp sensor due to a "sum of resistance" problem. You can isolate both circuits using diodes but you get a voltage drop problem. You can of course use parallel resisters to "reinject" the voltage lost with the diodes, but this introduces bias into the readings. Best bet is to run 2 seperate temp sensors...one for the instrument cluster (P5 ecu) and one for the KLZE ecu.


Exactly why I didn't bother trying to hook it up yet. I'm working on a soloution, thanks for the advice man.
 
I would really like to see a video of this!

Unfortunately, I don't think this swap is legal where I live, even if I could afford it.
 
I went to go take a video today, right at the end, the engine started to make terrible noises like it was F$%&ed. Turned out to be the alternator belt exploding thankfully. I'll hook up my other computer soon, and upload some video.
 
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