Diablosport Forums

When I first start up my truck when cold the afr is around 15.7. I would have thought the afr would be richer than 14.7. Never looked at it pre- diablo. Was wondering if this seems to be the norm.

Ideally cold start is a little richer than stoich.
We do not modify any of that logic in the canned tunes as there is no need for it.
Is your wideband warmed up enough when you do this?

johan wrote:Ideally cold start is a little richer than stoich.
We do not modify any of that logic in the canned tunes as there is no need for it.
Is your wideband warmed up enough when you do this?

Seems to be sporadic. Sometimes its correct others it isnt. Just would have thought it would have been on the richer side. You may be correct though, about the wideband. Thanks.

I've got my wideband wired for power with the key in "acc" or "on" position. How long do they take to warm up? It's about 5 seconds right?