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Posted on Jan 02, 2017
Jun 26, 2015 | Cars & Trucks
Fuel Trim System Lean (Bank 1)
Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifoldFuel control sensor is out of calibration (ECT, IAT or MAF)Low fuel pressure (fuel filter clogged, pressure regulator failure)One or more injectors restricted or pressure regulator has failedHO2S element is contaminated, deteriorated or has failedVacuum hose is disconnected, broken, leaking or loose.Trouble Code: P0174
Fuel Trim System Lean (Bank 2)
Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifoldFuel control sensor is out of calibration (ECT, IAT or MAF)Low fuel pressure (fuel filter clogged, pressure regulator failure)One or more injectors restricted or pressure regulator has failedHO2S element is contaminated, deteriorated or has failedVacuum hose is disconnected, broken, leaking or loose.
Dec 27, 2012 | Cars & Trucks
Fuel Trim System Lean (Bank 1)
Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifold.Fuel control sensor is out of calibration (ECT, IAT or MAF.)Low fuel pressure (fuel filter clogged, pressure regulator failure).One or more injectors restricted or pressure regulator has failed.HO2S element is contaminated, deteriorated or has failed.Vacuum hose is disconnected, broken, leaking or loose.Trouble Code: P0174
Fuel Trim System Lean (Bank 2)
Possible Causes:
Air leaks in intake manifold, exhaust pipes or exhaust manifold.Fuel control sensor is out of calibration (ECT, IAT or MAF).Low fuel pressure (fuel filter clogged, pressure regulator failure).One or more injectors restricted or pressure regulator has failed.HO2S element is contaminated, deteriorated or has failed.Vacuum hose is disconnected, broken, leaking or loose.
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