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I have been trying to find out why my check engine light has been coming on for the past year and the dealer only resets it and send me on my way. I bout the OBDII Bluetooth reader ELM 327 and use the Torque Pro app with my Samsung, went through all the setting and even selected the J1939...
I have a 4550 that every time I put my brush hog on it and start mowing within minutes the check engine light comes on and it starts powering down. I have the rpm's set, I run in low range and second gear, and it is a 6' brush hog that I am using. Each time I take it to the dealer, they reset...