Thread: NEMU Cold Tuning

That is definitely the best way to solve this sort of thing. Collect as much data as you can and then analyze it.

If you need help, shoot me a msg!

Pic of Accel/Decel table please. Also any reason for running Z32 maf on just a VE?

Reason for Z32 maf is that it was available and I couldnt find a N60 one... then after I get it all set up and running I find two at the PAP yard so I have them sitting around for spares... or extra cash.



All values for all screens posted are the most recent tune sent to me by John after a few dyno pulls... gained 5whp from it too

All looks fine, check for mechanical issues, like vacuum leaks.

i wish i could afford one of these.

No leaks found since putting the motor in in March. I've retightened all the hoses that could possibly come loose. No cracks. I was recording this morning but was not cold enough so didnt see anything or feel it either. Maybe when it gets colder it'll start doing it again. We'll see.

The other table that you guys can try adjusting is the ECT ACCEL INJ table.

I am not sure if this is just when changing throttle angle or if it is during steady state.. if during changing throttle angle then try adding some fuel to the ECT region of the ECT ACCEL table that this is happening.

Alright noticed some leanness and sputter at a certain temp today, just need to richen it up a bit in that area probably. Soon enough I'll see if my lowport RR will get the same issue, could be old IACV related (since my VE is fine!)

So nobody has come with a solution to this yet?

Im with a calum OB2 chipped ECU and acts the same way until it warms up.

I previously had a Z32, 3700c @ 4 bar and it ran fine,

but now with Z32, 550cc @ 4 bar it leans to 17.0 @ idle until it warms up, I can make it better with the SAFC by adding 6-9% fuel @ 1000rpms @ 0% throttle, but I dont like it because once it warms up it will run rich (11.5-12.8 afr's)for a brief moment everytime I decelerate to idle.

Now Ive been having this issue for over a year running and my cars is still running and I compression test it two months ago and had 150 across all cylinders, so I figure it will be ok.

If you guys figure it out I would like to know also.

I adjusted ECT Accel and TPS Enrich both a little it allowed me to lower my fuel map to 200 to the idle and cruise rpms. Still cutting a bit, I think it's going to need more. But seems like it is working, just so hard to tune cold because the car warms up so you literally get like 5 mins to try to fix the issue lol