I recently bought an s2k thats turbo'd with a .70 garrett. Greddy bov, tial wastegate, 3" injen exhaust, full-race manifold, fmic, and im missing a couple more.

But its tuned with aem ems I think version 1. I think its running lean though, the air/fuel ratio at idle is around 14, which is said to be normal. When driving at a constant cruise its around 16. but when I let off the gas it says 'lean'. This is my first turbo'd car and i'm just trying to take in as much information. Should I get a re-tune? Problem is the local shop is saying 477$ for a re-tune which seems crazy.

Thanks for any advice!!

 

Idle at 14.7 is normal. At constant speed should be fluctuating around 14-15. Let off gas should read lean.

 

+1

what is your afr at wot? that is what you really want to be concerned about.

 

WOT is around 12 give or take.

Is it still okay that cruising speed is around 16 or is that to lean? Basically should I be concerned.

Thanks for the help, I look forward to the new S2k World