P0170 Fuel Trim Malfunction A Complete Troubleshooting Manual

It is the ecu telling us that it is having to enrich or weaken the mixture outside its preset limits - can be caused air inlet leaks, split ... P0170 code definition Fuel Trim Malfunction (Bank 1) What the P0170 code means The P0170 code means that the powertrain control module is detecting a fuel ... P0170 and P0173 means that the system tried to go outside of the fuel trim limits. Now this can be usually caused by a bad mass airflow sensor, ... The P0170 code indicates that the fuel trims have reached an abnormally low or abnormally high value for a specified amount of time. Minivan, SUV, & Truck - P0170: Fuel trim malfuction (bank 1), P0172: System too rich (bank 1) - My Odyssey (2001) is running rough, ... The Toyota FSM says the P0170 code for the 1995 LC is not set until fuel trims have reached +/- %35 and my trims are not even close to that. Usual suspects... Air leakage to induction system, Dirty throttle body, Blocked crankcase ventilation or PCV nipple, Faulty MAF. It pulled a the code P0170. The guy at the store said it could be a MAF sensor or a vacuum leak. I had recently replaced the MAF so I started looking for a ... List of possible causes: - Intake air leaks - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect ... 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 ...