Forums/Z31P/z31-performance-upgrade-forums engine-management/Nistune woes
Imported from Z31Performance.com Forums{{#if:NissanXRMA| — original post by NissanXRMA}}{{#if:2013-07-28 16:10:44|, posted 2013-07-28 16:10:44}}{{#if:3| · 3 post{{#ifeq:3|1||s}}}}{{#if:/Z31performance_archive/forum/z31-performance-upgrade-forums/engine-management/22245-nistune-woes.html|
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NissanXRMA: (2013-07-28 16:10:44)
I'm going to be honest, this is a noobish question. Probably cut out for the basic-mods section, but on with it.
I'm aware nistune is not plug and play by any means with a stock tune and a modified K value.
But so far my K is around 320 and my latency is around 1000. Timing is set at 10 and Nistune confirms.
The problem is that the tune never seems consistent. When fully warmed up, the Z will run rich.
Around 12.5 AFR idling, 12-13 cruising and 10-11 at 7psi boost, richer with throttle position. But
suddenly the tune will change and the idle will be around 14.5 which is where i would want it, cruising is around 14
and any amount of boost, the AFR's stay around 15-15.5.
The tune is permanently burn so it's not a temp file. It's almost like it switches maps. Making tuning impossible.
Any ideas?
EDIT:
My setup consists of a 255lph, 420cc injectors at stock fuel pressure, Stock MAF, t4 turbo at 7psi, intercooler, vg33
michaelp: (2013-07-28 16:59:03)
Enrichment tables…cold start, warm start etc....
Axel kain: (2013-07-29 03:54:38)
^this. and check temp conversion.