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About two weeks ago my truck triggerd a CE light. I pulled the code and it is P0170. Fuel trim malfunction. The truck seems to be running fine. I cleared the code and it came back yesterday. I found a couple of threads here but did not seem to be a conclusive answer. Seems a ECU re-flash may be in order? Here is the thread:
Bulletin Number: TSB 16-0134 Bulletin Date: 10-05-2016 Component: 060000 engine (pws) Summary:
Some 2015-2016 f-super duty vehicles equipped with a 6.7l diesel engine may exhibit an illuminated mil with dtc p0170 (fuel trim bank 1) stored in the powertrain control module (pcm) memory. reprogram the pcm to the latest calibration.
About two weeks ago my truck triggerd a CE light. I pulled the code and it is P0170. Fuel trim malfunction. The truck seems to be running fine. I cleared the code and it came back yesterday. I found a couple of threads here but did not seem to be a conclusive answer. Seems a ECU re-flash may be in order? Here is the thread:
Bulletin Number: TSB 16-0134 Bulletin Date: 10-05-2016 Component: 060000 engine (pws) Summary:
Some 2015-2016 f-super duty vehicles equipped with a 6.7l diesel engine may exhibit an illuminated mil with dtc p0170 (fuel trim bank 1) stored in the powertrain control module (pcm) memory. reprogram the pcm to the latest calibration.
Had the same issue back in 2017. Had the dealer perform the PCM flash, per the TSB, and haven't had any issues since.
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