Hi all,\n\nI have a 05 LGT 5EAT with an ECU tune and I have an issue with my car. Everytime I put it into D it stalls out, the first time it happened was last year and I took it to a shop. They cleaned the throttle body and fixed a vacuum leak and the car was fine. Fast forward to a little over a year and the same issue happened 2 weeks back. I tried cleaning the MAF to see if could be that, no luck. Called over a mechanic who then got the code P1718 and P0700. Reset the battery and the car worked fine. Drove the car like normal Then again yesterday the same issue. Replaced TCM reset the battery, the car went into gear. Mechanic noticed that the idle seems a bit low, idling at about 500-600RPM. I heard someone who had the same issue and codes had LED brake lights and another one had a bad brake light switch. Any suggestions on what to do? We are both stumped at this point. Cheers in advance!