Fuel Trim Malfunction (P0170) Master the Diagnosis and Repair Process

P0170 indicates a fuel trim malfunction in Bank 1 of the engine. This means the engine control module (ECM) is having difficulty maintaining the ... Here is what I have read about the possible problems/solutions for these codes: - There could be a vacuum leak downstream of the MAP sensor - Defective or ... P0170 Fault ... Anyone on here pull a P0170 code? (Bank 1 Fuel Trim Fault) Looking for some guidance on how to proceed. Explore the P0170 OBD-II code for fuel trim issues: learn common triggers like vacuum leaks and MAF sensor faults, along with diagnostic tips at RepairPal. 2018 Turbo S service code p0170 . ... Had bad fuel . Cleaned and flushed tank and lines, now check engine lamp on with service code p0170 that ... Possible causes for fault code P0101 = ECM130A Air leakage to induction system, Dirty throttle body, Blocked crankcase ventilation or PCV nipple, Faulty MAF. A fuel trim where the ECU is trying to add fuel would be a good indication of fuel starvation at idle. ;) I don't think yer O2 sensors are ... 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. The ODBII code P0170 indicates that there is a malfunction in the fuel trim system for Bank 1, which means the engine control module (ECM) is having. the code mean there's a vacuum leak. engine oil leak if bad enough will cause low vacuum and cause a leak code as well.