Unveiling the Secrets of P0170 Fuel Trim Malfunction

The fault code P0170 can be caused by parts like the fuel filter, fuel pressure regulator or the air mass meter. The adaptive values in the ECU are adjusted so ... Hi All, I currently have trouble codes P0133 and P0170 Bank 1 sensor 1 slow response Bank 1 fuel trim I have been battling the P0133 and P0170 ... mine was bad front 02 sensor. If you have a pocket logger then pulg it in and see what the sensors operating range is. If its not moving at all ... Possible causes for fault code P0101 = ECM130A Air leakage to induction system, Dirty throttle body, Blocked crankcase ventilation or PCV nipple, Faulty MAF. VW DTC P0170 - Fuel Trim, Bank1 Malfunction. That would be the ECU informing you that the air / fuel mixture coming out of your engine is off, way off. Steps taken: Thoroughly cleaned out throttle body. Pulled and cleaned the MAF sensor. Both with the appropriate cleaners. Cannot find any leaks, ... It reads like the engine is overfuelling, how old is the car ? it's recommended to replace the oxygen (lambda) sensors every ten years or so. To check fuel pressure you need to have a gauge tapped into the fuel supply. The engine bay side. Poor fuel pressure and/or a restricted fuel ... P0170 is Fuel Trim Malfunction (Bank 1). Building THE GREATEST 3G to date and possibly EVER built by PharmEcis. MIVEC 6G75 Turbo 5 Speed AWD. ANY ONE HAD THIS CODE ON THEIR BMW Z3 1.9 (2000) THINK IT MEANS FAULT IN FUEL TRIM (BANK 1) HAVE CHANGED THE FUEL FILLTER BUT STILL GET THE ...