Hi,
Some of you know me from this forum but those of you who don't here is my issue. I've spent a lot of time troubleshooting this and I'm about to give up and have someone professionally tune my mustang. I've been working on this same issue since last fall just about every week. Shows you my patience to learn and figure this out. My GT currently idle's high for 2-3 seconds before falling down when shifting gears. However at times it will hang and not come down or will continue to go up. I'm clueless but do believe its more mechanical than tune related. I've exhausted just about every high idle, hanging idle forum solutions I can think of. The files I've uploaded on here shows Long Term and Short Term Fuel trims, along with, spark, Duty Cycle and lambda. There is also a couple other one's on there too. Hopefully someone can identify exactly what the issue is from datalog. I tuned it in open loop and got the tables perfect. Once I turned on closed loop and adaptive learning this is what I got. I've driven it quite a bit but I'm afraid of internally damaging the motor and need to figure out whats going on. I've calibrated my throttle body per specs of the manufacturer. I use SCT software and they have no support with their tuning program including no forum support so I'm stuck.
Some of you know me from this forum but those of you who don't here is my issue. I've spent a lot of time troubleshooting this and I'm about to give up and have someone professionally tune my mustang. I've been working on this same issue since last fall just about every week. Shows you my patience to learn and figure this out. My GT currently idle's high for 2-3 seconds before falling down when shifting gears. However at times it will hang and not come down or will continue to go up. I'm clueless but do believe its more mechanical than tune related. I've exhausted just about every high idle, hanging idle forum solutions I can think of. The files I've uploaded on here shows Long Term and Short Term Fuel trims, along with, spark, Duty Cycle and lambda. There is also a couple other one's on there too. Hopefully someone can identify exactly what the issue is from datalog. I tuned it in open loop and got the tables perfect. Once I turned on closed loop and adaptive learning this is what I got. I've driven it quite a bit but I'm afraid of internally damaging the motor and need to figure out whats going on. I've calibrated my throttle body per specs of the manufacturer. I use SCT software and they have no support with their tuning program including no forum support so I'm stuck.