Fuel cut while doing donuts??

[zbc1969]

I unplugged the AWD fuse and put the car in sport mode with traction and stability off. Then ripped around and after about one to two donuts in I get a fuel cut. Anyone know a fix to this?

 

[MerlintheMad]

What happens after that? In other words, when do you get your fuel feed back? I'm sure the car's "nannies" are telling you to knock it off!

 

[zbc1969]

Yeah it's 100% a nanny. After the car stops sliding I get fuel back and everything is normal. No lights or anything

 

[MerlintheMad]

Maybe don't do "donuts"? Just drift. Probably something to do with the compass setting program. When your compass is not reading the quarters correctly, there is a reset procedure where you do three complete 360 degree turns at under 5 MPH. So the car is definitely set up to KNOW when you are turning and how much. Clearly it doesn't like you messing with it in this manner. But drifting should be okay.

 

[niko]

Usually it goes into limp mode when it cuts fuel loss. Only way to reset it is turn off the car wait a few seconds turn back on.

 

[zbc1969]

The weird part was it didn't go into limp mode. After I straightened out I could keep drifting and doing donuts. Could an ECU tune get rid of this Nanny?

 

[MerlintheMad]

The weird part was it didn't go into limp mode. After I straightened out I could keep drifting and doing donuts. Could an ECU tune get rid of this Nanny?

Just because a "nanny" behaves differently in your Stinger doesn't mean that is a universal or even common behavior in other Stingers. I ardently believe that the complexity and interconnectedness in modern vehicles is so little understood that even the designers/engineers can be surprised at the manifestations/quirks in their own creations.

 

[Kazz]

I'm used to fuel cut being about crossing an imposed rpm limit. But with our automatic transmissions it should change gears. Is that what happened?

 

[MerlintheMad]

I'm used to fuel cut being about crossing an imposed rpm limit. But with our automatic transmissions it should change gears. Is that what happened?

I've experienced this several times, where the tach bounces off the red line and the trans upshifts immediately. The effect would be like the "gas cutting out". Doing donuts would have to have very high revs, so once the needle hits the red line, there goes the lower gear, and the guts are pulled out of the donut!

 

[Kazz]

I've experienced this several times, where the tach bounces off the red line and the trans upshifts immediately. The effect would be like the "gas cutting out". Doing donuts would have to have very high revs, so once the needle hits the red line, there goes the lower gear, and the guts are pulled out of the donut!

That's my point. In a manual transmission you'd hit fuel cut but it would bounce right back on as soon as revs dropped slightly. You could do a burnout and just bounce off the limiter/fuel cut. But in our cars that drop to another gear would likely kill the spinning of the tires.