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Hey I have a 2019 Bighorn 5.7 that has done this since I drove it off the lot. Took it to dealer 3 times, last time they replaced the ECU. After a drive cycle, misfires come back in Mode6 data. Short term fuel trims while idle are -15 on bank 2 and -10 on bank 1. When...
Hey I have a 2019 Bighorn 5.7 that has done this since I drove it off the lot. Took it to dealer 3 times, last time they replaced the ECU. After a drive cycle, misfires come back in Mode6 data. Short term fuel trims while idle are -15 on bank 2 and -10 on bank 1. When crusing and driving normal...
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