Guys,

I'm running a bit lean while in boost around 12.8 and I believe I should be in the 11's - I've also got a weird issue where if I throw her into neutral an coast to a red light she tends to idle as if I have a vac leak and my wide band runs up to 17s and back down over and over. It will do this consistently until I get under around 15 mph to a stopping point then shes back to a normal idle.  I believe this also has to do with my AFR.   Any help would be greatly appreciated.  Specs are shown below and I can supply my recent logs if needed.

'03 VW 1.8 GTI  - Eurodyne Maestro Software
  - GT3071r turbo w/ billet wheel
  - Tial stainless steel GT3- v-band exhaust housing
  - Tial MV-R 44mm wastegate
  - InjectorDynamics ID725 injectors
  - APR intake manifold
  - 3" exhaust system. no cat. Magnaflow resonator and muffler. Dual tips.
  - Eurojet grenade Diverter Valve
  - Greddy 500hp core
  - Devils Own's DVC-30 water methanol
  - 42DD oil catch can
  - Aeromotive 340 fuel pump
  - 2.0T coil pack upgrade with IE spacers
  - Fluidampr lower pulley
  - Brute 19mm Connection rods

Of course, because you have made it lean  .

KFLF is not AFR request.
0.85 means 14.7(aprox) + 15% = around 16.9 without lambda correction.

But if you use methanol you should lean it a little via KFLF or KFKHFM to prevent misfires.


By the way, what software do you use? ECM Titanium also "think" that KFLF = AFR request.

Think that is BTS...

Eh, appreciate the patience everyone.  New to the tuning scene.

So, i need to tune more towards .78 request for this map if I want 11.5ish while in WOT (boost)?

Yeap, I was wrong 


Its for BTS or LAMFA, not for KFLF, like I thought) Strange thoughts