This probably applies to 1Gs also, but I can't say for sure.

I took out three of the five honeycombs from my 2G MASC (the two side ones, and the bottom one). I have an old-style Super AFC, and I tuned the 800rpm dial full rich, to compensate for the overly lean mixture at idle.

When I am at highway speeds, and I remove my foot totally from the throttle to slowdown (with my foot on the clutch, or else in neutral) and am just coasting along, my RPMs don't hold at a steady 800 or so, but bounces around between around 900 and 100, to the point where the vehicle is almost stalling.

After resetting my ECU, I have actually stalled the car while driving, and pressing in the clutch while I was preparing to shift. This is when I don't let the car idle for a while and get used to the values it is seeing.

So is there anyway I can compensate for those RMPs bouncing around?? Am I still running too lean (even with the AFC maxed out)?? How about if I play with the BISS screw a little bit?? Would that make a difference?? Anyone have an ideas about what my car is doing??

Thanks!
http://www.cableregina.com/users/belitski http://sask.dsm.org

Kevin,

I have a frankenstein Stage 2 turbo and 660 injectors and no honey comb and I am having the same problem. While under boost the car will stall or the revs will bounce at the bottom of the band IF you take you foot off the gas.

In my case I think it is due to local flooding , so I leaned out the mixture at the bottom end for low throttle ( new AFC ) and the problem has all but gone away. I have not had a chance to play with it more but think that this will solve my problem. I tried richening the mixture up at first and it only made things worse.

My theory is that when you take your foot off the gas, for a split second you get more gas due to large injectors and thus flood the car. I may be wrong though????

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Reza
97 F2 TSi AWD
FRC FED