Z31 cold start issues

[Timbo_021]

Howdy
Having an issue lately with cold start. The car will start fine and then after a few seconds it leans right off until it dies. It will do this until it gets to about 40 degrees engine temp and then it runs better. The log shows that as the engine starts to lean off from 13afr, nothing changes as in injection time, timing or tp.. Its bizzare.. Heres the log.

You can see I gave it a few tries but the first try is when the engine is stone cold starting.

[Matt]

There are spikes in your warm up tables which may not help here

When using Z32 MAF on these ECUs the movement of K constant can mess up the warm start. This requires the enrichment coefficient (warm and cold) to be increased

Attached is a pic of the changes I made to my warmup adjustments when using Z32 on my vehicle

[Timbo_021]

Ahh, I see. Ill make some changes and see how I go tomorrow morning. I managed to get it a little better by changing the latency of the injectors but its still a bit shit. Thanks Matt.

By the way, got that 32gtr ecu sorted too, working nicely now .