I have an issue that cropped up yesterday. A little back history. Earlier in the year, I'd run E85 for about 3 tanks and then run a tank of 93. Never had any issues switching back and forth between the tunes/fuels. I switched back to 93 yesterday for the first time after being on E85 since May. Now, every time I put the car in neutral while sitting at a light (or rolling up to a light), the little yellow wrench comes in on the dashboard. I have to kill the car and restart to get it to go away(otherwise the car is in limp mode), but it just comes right back next time I go to neutral. There's no weird fluctuations in idle or anything and the car drives normal otherwise when in gear. After a few wrenches showed up, the check engine light came on and I checked it with my SCT and I got "P0100 Mass or Volume Air Flow A Circuit". I cleared the code and got the wrench a few more times and then the code comes back. I've popped the hood and looked at my JLT cold air. Nothing seems out of place. I didn't move/touch anything. This started happening immediately after switching tunes/fuels. There's been no hardware changes. I have an off-road H/GT500s and a JLT CAI on the car. Any thoughts about what might be going on here?
