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P0174 Diagnostic Trouble Code Discussion for June 2012

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2006 Toyota Sienna LE 3.3L Misfire, MIL Lamp on VIN: 5TDZA23C46
P0174: Fuel System Too Lean (Bank 2). ... Vehicle came in with a light misfire. Also had multiple codes stored. Cleared codes and P0305 comes back immidiately. Misfire data shows a constant misfire count. Performed a tune up due to original plugs. Swapped coil to #6 hole, to see if miss changed cy...
June 01, 2012
2006 Toyota Sienna LE 3.3L Misfire, MIL Lamp on VIN: 5TDZA23C46
P0174: Fuel System Too Lean (Bank 2). ... Vehicle came in with a light misfire. Also had multiple codes stored. Cleared codes and P0305 comes back immidiately. Misfire data shows a constant misfire count. Performed a tune up due to original plugs. Swapped coil to #6 hole, to see if miss changed cy...
June 07, 2012
2000 Mercury Cougar 2.5L Poor Idle Quality, MIL Lamp on VIN: 1ZWFT61L2Y
P0174: System too lean bank 2. ... po172 system too rich b1 and p0174 system too lean b2. Fuel trims were 30 +. Looked for vac. Leaks and found intake gasket leaking. Replaced upper and lower gasket and rechecked for leaks and none were found. Customer returned 2 days later with same runnin...
June 12, 2012
2002 Ford F-150 XL 4.2L low power VIN: 1FTRF17242
P0174: bank two lean. smoke tested intake, egr and lft rear inj seal leaking. It appears the b2s2 may be lazy. Ive read the many reply for this engine and agree I probably need to replace intake gasket but what is throughing me off is the rich fuel condition on bnk 1 causing the lt...
June 15, 2012
2004 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1J4GW48S84
P0174: Fuel System Lean (Bank 2). Ok, this one really takes the cake. The computer thinks bank 2 is lean when in fact it is not, then the computer adds fuel for an extream lean condition that does not exist. Here is what is happening, bank 2 s1 o2 reads ok at times, then the o2 sensor will go...
June 29, 2012