Questions & Answers for: Cadillac fuel trim

...Fuel Trim Bank 1 P0171 - Fuel Trim System Lean Bank 1 P0172 - Fuel Trim System Rich Bank 1 P0173 - Fuel Trim Bank 2 P0174 - Fuel Trim System Lean Bank 2 P0175 - Fuel Trim System Rich Bank 2 I have a ...

...FUEL TRIM SYSTEM RICH BANK 2 CONDITIONS THESE ARE YOUR POSSIBLE CAUSES. YOUR EVAP CANISTER FUEL SATURATED.YOU COULD HAVE A BAD ECT IAT MAF SENSOR.YOU COULD HAVE RUPTURE FUEL PRESSURE REGULATOR.ALSO A ...

Code PO174 The check Engen light came on defined as fuel trim lean bank 2. possible causes would be clogged fuel injectors, vacum leak or bad oxygen sensor Bank 1 not Bank 2

...fuel trim if engine is cold or decrease fuel trim if engine is warm. Also keep Mass Air Flow Sensor clean (it has an air temperature sensor in it) Timely oil and air filter changes will also help . ...

fuel term trim pd36 and a transaxle pressure switch or egr valve pintle position out of range Pull off the EGR valve and cea the carbon off of it next put a hose on the vac port on the egr and **** on

...fuel trim is say +18 and the long term fuel trim is say +20 at idle then try runnung the engine at a steady 1600 rpm and wait a minute till the readings level out. If they approach 0 then look for a ...

...Fuel Trim. Accelerate. Turn off the air conditioner and all the other loads and apply half throttle until 88km/hr (55mph) is reached. During this time the Misfire, Fuel Trim, and Purge Flow ...

...Fuel Trim System High Limit Bank 1 Circuit Description The wide band heated oxygen sensor (HO2S) measures the amount of oxygen in the exhaust system and provides more information than the switching ...

2004 cts running lean Weak fuel pump , dirty fuel filter , clogged injectors How to use Fuel Trim to identify the cause of P0171 and P0174 code

...Fuel Trim System Lean Bank 1 • DTC P0174 Fuel Trim System Lean Bank 2 . The engine control module (ECM) controls the air/fuel metering system in order to provide the best possible combination of ...