Andy_8

On the idle stepper look up table does changing numbers to higher values push the stepper out or pull it in ?

I've recently deleted EVAP and EGR and put an S90 70mm throttle body on, set the map up as per instructions on here and have no cell lights. Reset base idle using Evoscan SAS and BISS e.t.c

Only issue now is that from a cold start the stepper initially kicks out but does not hold and drops down to 900rpm straight away. Where the car struggles for a minute or so.

What AFR's should i be seeing at cold start, as my WB is showing 14's straight away.

Would decreasing "Post primer enrichment decay" and increasing "Post primer enrichment" put in and keep in more fuel in at cold start ?

Car is perfect when up to full temperature. EDM Evo VIII on V7 96532706 DMA

Cheers

Andy

wizzo 8

iTrader: (35)

Smaller steps = more out to restrict more air

Andy_8

Thanks, that has sorted the cold start stepper issues.

Just a wierd AFR lean out when partially warm and a rich/choppy deceleration overrun (or over run timing to sort)

Almost there