ralphiegb
New Member
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- #1
Hi all. Not my first Mustang, but I just picked up a 2015 Ecoboost with 50K miles that had an intake, borla exhaust and a Cobb tuner already on it. I am new to the tuning a turbo engine world. When I picked up the car I had a 600 mile drive home. It was running great other than some skips/pops under hard acceleration when in boost. Once I got home I plugged in the access port and it had the 93 tune loaded. Because I wasn't sure what the dealer had put in it, I dropped it to the 91 tune to be safe. I had filled the tank with 93 after picking up the car, was about half full to start. And then topped it off again when it was about a quarter full during my trip home. After getting the access port up and monitoring, I was unable to get OAR values to ever go below 0 and was getting +1 while accelerating. So I drove it mildly until I could get it down to 0 miles till empty to fill it with 93 from Mobil which was labeled as Top Tier. After about 30 miles, I still wasn't getting a -1 OAR at all. I switched to the stock tune and actually started getting negative ignition corrections so I switched it back. This morning I put new plugs in the car, NGK recommended by PD Tuning. The plugs that were in it were pretty black and were Ford, so may have been original. Only got to drive it about 8 miles with the new plugs today, but it was still skipping and popping under hard acceleration. I do plan to swap the FP sensor, as it is the older original version, but the readings all seem normal on that. I eventually will get a custom tune from PD, but know they will want it running well to start. I don't know where to go next with the OAR...datalog attached as well.
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