aziankingz Posted October 19, 2013 Share Posted October 19, 2013 Hi All, Just recently replaced my long block and decided to go stage 1 with a Cobb AP v2. It was driving great stock without any issues. I then flashed it to the Cobb Stage 1 for 93 octane - revision 3.00. When I went to drive it around, it stutters at initial acceleration and seems to stumble and want to die when coming to a stop. It also seems to stumble when in reverse and also did die on me once already. This seems to happen when cold and smooths out after driving around a bit. After it warms up, it is smooth and it spools faster than stock. Any ideas on what could be wrong with this tune on first start? Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted October 23, 2013 Share Posted October 23, 2013 The OTS maps aren't the best, but your ECU is still in the "learning" stages. Since this was posted a few days ago, does it seem to be any better now? www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
aziankingz Posted October 24, 2013 Author Share Posted October 24, 2013 Unmarried it from my ECU and the car is running good again - decided to go opensource dyno tune. Link to comment Share on other sites More sharing options...
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