mi16 on 8v motronic management?

[FauxRallye 4 1 Cars]

Thanks that's what I needed.

Made one from some eyeball measurements for now.

A drillpress, welder and grinder can get you pretty far if you don't have a lathe.

 

Haven't gotten my hands on the right ecu yet, but I can get a 354 for some reasonable money to get it running now. I'll keep looking for a 158 or 161 though

[SRDT 146]

Did anyone try to use the lambda signal instead of the CO pot on the 354 ECU? It seems to work on the MP3.1, at least at idle.

[FauxRallye 4 1 Cars]

Thanks for the schematic! 

I got pretty close with the thing i made.

Round part on mine's 36mm long instead of 33 and has 20mm diameter. Let's hope I can find some 16mm bar to make it perfect 

[FauxRallye 4 1 Cars]

One more thing that's just crossed my mind, does the polarity matter on the knocksensor? Or is that pretty much irrelevant?

[SRDT 146]

Pin 1 on the sensor connector is pin 11 on the ECU, it probably doesn't matter but there is no harm in doing it rigth.

[FauxRallye 4 1 Cars]

Perfect I'll keep that in mind when I'll wire it up. Fingers crossed the connectors and stuff arrive in time  for the swap, I hope this is one of those times chinese post is quicker than expected. Also got a 354 in the mail and I think the smart thing would be to upgrade to an emerald ecu in the long term, but I'll have to save up some money for that.

[petert 550]

Emerald? Surely you mean Emtron?

[FauxRallye 4 1 Cars]

Emerald k6, they sell it at pug1off with the adapters to the standard 55pin plug, bit that's really a long term plan.

[FauxRallye 4 1 Cars]

Oh emtron's an Australian brand. hadn't heard of them before, but they're way out my price range to be absolutely honest

[petert 550]

That's very old technology. The fuel modelling in modern ecus is far superior.

[FauxRallye 4 1 Cars]

That's true, but I can't quite adjustify spending more than a months pay on an ecu.

[FauxRallye 4 1 Cars]

Small update on the progress.

Everything has arrived just in time for the swap. This evening I'll rip out the old engine and then I have 4 days to get the new one in and get everything working. 

Ecu-wise I got my hands on a 354 for now, so no o2 sensor. 

[FauxRallye 4 1 Cars]

Wiring up the ecu connector was less tedious than I thought 

[DamirGTI 323]

On 12/1/2023 at 1:49 AM, SRDT said:

Did anyone try to use the lambda signal instead of the CO pot on the 354 ECU? It seems to work on the MP3.1, at least at idle.

 

Works on a ZX *212 and 605 *214 Mp3.1 ECU's , though haven't yet tried plugging in the WB probe to see what's going on with the mixture from idle to the limiter , cruising and overrun .

 

D

[SRDT 146]

Those are a bit more modern and both cat and non cat variants are using the same pin on the ECU, on the ML1.3 pin 43 is only for the CO pot.

[FauxRallye 4 1 Cars]

Engine is in! I should have it running tomorrow, if everything goes to plan.

Found out that I have to run the loom over the intake otherwise the wires come up a bit to short. 

[FauxRallye 4 1 Cars]

She runs!! Also what polarity is the iac?

I have run the wires but I haven't put the plug on yet because I wasn't sure.

[SRDT 146]

Congrats

On the plug pin 2 is +12V and pin 1 (4 on the ECU) is ground.

[FauxRallye 4 1 Cars]

It took some time, but I've finally gotten it running right.

Had some issues with the sensors and maybe the ecu, but it's all fixed now.