M4 Honda B Series

[Ben-S]

One of the employees at our shop is using an M4 on his B series honda, the ecu was purchased second hand and came with the "honda b" wiring harness, It's mostly plug and play but there are a few things we need to wire up and modify. I was wondering if you could supply us with the pinout sheet for the harness, we have the physical harness drawing but not the pin designations.

Thanks

[Allan]

The Manual is available on the website!

http://www.motec.com.au/filedownload.ph ... docid=1086

[Taylor]

I was wondering if you could supply us with the pinout sheet for the harness, we have the physical harness drawing but not the pin designations.

Thanks

The Manual is available on the website!

http://www.motec.com.au/filedownload.ph ... docid=1086

There is nothing for the Honda Harness in there, you may be confused.

We are looking for the ecu loom pin out, The harness is made by motec.

i have this harness loom layout- http://i92.photobucket.com/albums/l28/t ... tec015.jpg

I need the pin out for it.

[MarkMc]

Hi Ben,
The loom was made buy JGM who are our U.S. distributor, hopefully one of their guys will be online at some stage and can send you the full loom pinout. I will keep an eye on this thread to make sure you get what you need.

[Ben-S]

Still looking for this tried calling and emailing Nathon with no response

[MarkMc]

Hi,
I'll send an email to see if I can get hold of it.

[Ben-S]

Got it, thanks

[quick8civic]

Hi guys! I'm new to MoTeC ecu's to start with..I just bought a used M4 which I had wired to my Honda B-series engine civic..This is a brief description of my work..I have wired up the supplied harness by tapping it to the existing car harness where the oem ecu was wired.naturaly, the oem ecu was removed.I had fired the engine up already. My question:during idling at 900rpm, normal operating temp, the engine mysteriously misfires then dies.as I fire it up again,it fires up but I have to rev it up to keep it from dying.I tried to decrease fuel values at the cells around 0-2000 rpm thinking I was killing the plugs with overfuelling but to no avail..what could have caused this?

[MarkMc]

Hi Mate,
If the AF suddenly goes mega rich it will be for a reason. Look in "T" for Trims and this will show you the way the final fuel value is calculated, the ECU will not hide anything.

Check the dizzy signals with an oscilloscope to make sure you have them set correctly, having the sync wired the wrong way on those factory setups can cause problems (the sync tooth is a specific shape and only really works one way).

Start at 270 degrees for EOI. Move it up in lots of 10 at idle until the mixture read the richest (should be able to hear the engine sounding better). It could end up at 400+. Make sure the table is a smooth slope or even flat, should not be decending. Any big changes between two sites will cause drivability problems.

[quick8civic]

Thanks Marc for the reply..I'll try fiddling with the EOI as you mentioned..re:trims, I tried to zero out any trims except for the MAP comp.I noticed MAP comp -70% at idle on the trims screen.Am I correct in saying that its pulling fuel out by 30% at idle or the other way?what would happen if I zero out the MAP comp table?also, what would be a good starting point or best values for the Injection Timing Table?I only have 0-110 load/eff table since I'm only running it on normally aspirated mode..Hope to hear from you.Thank you very much.