butte

Hey guys. This is driving me crazy. I recently began tuning with e85. I increased the boost (MBC) to around ~26-27 peak and now I seem to be hitting fuel cut a second or two after hitting WOT.

It feels like the car is hitting a brick wall and it's really jarring. I immediately suspected that I was hitting the 320 load limit with the increased boost, but that does not seem to be the case. I'm encountering fuel cut almost every time that I go WOT, and it doesn't seem to have any relationship to load %. sometimes it occurs when the car hits 150 load, but more consistently when it hits 280-290.

Nevertheless, I followed the procedure to increase the load limit as documented by mrfred here:
https://www.evolutionm.net/forums/ec...nge-638-a.html

No help. Still hitting fuel cut. I made sure that I grabbed the XML for my ROM. I double checked that the settings are correct but I'll post them here for verification anyhow:


Here are a couple of logs with all that items that I thought might be helpful for tracking this down. I know I'm running pretty lean @12.5, I attribute this to the e85 that I put into the car that had been sitting around for a month or so. I've had this issue since before I put the older gas in to the car so that can be disregarded.

Here is an isolated occurrence. You can see the fuel cut in yellow:


And here's another occurrence, where I encountered fuel cut, backed off, then induced fuel cut a second time and held WOT to see if I could glean any extra information out of the logs:




Has anybody encountered something like this before? Fuel cut below 319 load that doesn't respond to the fuelcut X2 patch?

Any ideas at all?

butte

bump for hopefully more exposure

merlin.oz

was the boost limit thing originally 6DDD before you changed it to 4DDD ?

Fast_Freddie

iTrader: (50)

Do you have NLTS enabled? If so turn it off and reflash

butte

I did try that, NLTS is currently disabled and I'm still encountering the fuel cut

Yeah, it was 6DDD originally