Empowering Drivers Understanding P0170 and Fuel Trim Malfunction

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 ... Code p0170 - A Fuel Trim Malfunction DTC results from your combined LTFT and STFT exceeding threshold, indicating that your tuning for closed- ... Got bored today decided to hook up GuzziDiag on the Tuono. Found one fault: P0170. P0615 P0170 Starting relay Short circuit to positive F. 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 ... 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 ... 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. 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. There is a limit to how much the ECM can trim the fuel mixture and when the limit is reached for a specific amount of time the ECM will set the ... 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 task is to see if you have a Rich or Lean condition, since the DTC code provided is quite general and doesn't tell a whole lot.