Fuel Trim Malfunction (P0170) Empowering You with the Knowledge to Fix It

I have this code. I changed the MAF sensor because the EGR valve is working and spraying carb cleaner around the intake gasket had no effect. DTC Code P0170 indicates a Fuel Trim Malfunction, where the Engine Control Module (ECM) detects an imbalance in the air-fuel mixture. Symptoms for Fault Code ... 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 ... Googling gives me P0170 Fuel Trim Malfunction (Bank 1) - fuel trim malfunction. It does have a rough idle but has not stalled. I've gone through ... That is a fuel trim error, not just related to MAF, but vacuum leaks, bad O2 sensor, Oil contamination in MAF connector or O2 sensor connectors. That code is set when the ecu needs to adapt long term fuel trims more than 25%+. You still have some kind of vacuum leak check the brake ... Possible causes for fault code P0101 = ECM130A Air leakage to induction system, Dirty throttle body, Blocked crankcase ventilation or PCV nipple, Faulty MAF. Long term fuel trim is down to 14.8 now, which seems to fix the CEL, but it's idling like poop now. Sputters a lot. 16554 P0170 035 Fuel Trin, Bank 1 Malfunction Possible causes: Air leaks - Map, TB gaskets?? Lambada - Clean or Replace any other possibilities? The p0170 code refers purely to the fuel mixture (air/fuel ratio) but without stating which way it's going. p0171 is mixture to lean and P0172 is too rich.