Thread: NEMU Cold Tuning

Hey guys, I'm having trouble dialing in my NEMU setup when it's cold. When the car warms up it runs fine, but when cold it wants to lean out while just driving and hit 17-18arfs and start sputtering. Anyone have any ideas? Brand new spark plugs and still does it, so it's gotta be in the tune. If I mess with the latency or injector size to much then it will run way to rich at idle. Any ideas appreciated.

blow through?

Draw Through

what tune did u start with?

Sounds exactly like my JWT VE program. It happens before 65 Cº on the coolant. After that works normally.

Add fuel in the cold enrichment table to the temperatures you are having issues at

Have already messed with it vadim, it throws my idle way rich. It also still did it when i did that as well.

And I think I tried messing with the Latency and such after as well. Don't remeber but I will try when I get home tonight.

screeen shot the tables so we can guide u... the solution sounds obvious but, as you said. you tried that

your idle gets rich... do you have a TPS vs injector correction table?

Record a log of the problem and we'll have a look. Could be the TPS acting up when cold.

Dave