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P2177 Diagnostic Trouble Code Discussion for April 2014

Fuel System Too Lean At Off Idle (Bank 1)


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Trouble Ticket Help Requests for DTC P2177
Help Request Posted
2009 Smart Fortwo Passion 1.0L MIL Lamp on VIN: WMEEJ31X39
P2177: system lean off idle. we have looked into this atleast 3 different times. replaced the plugs and air filter. per techline bulletin. all readings look good fuel etc. cleaned the throttle body today. it was gummed up.air filter looks clean. i see no reason for this code to keep reset...
April 07, 2014
2009 Smart Fortwo Passion 1.0L MIL Lamp on VIN: WMEEJ31X39
P2177: system lean off idle. we have looked into this atleast 3 different times. replaced the plugs and air filter. per techline bulletin. all readings look good fuel etc. cleaned the throttle body today. it was gummed up.air filter looks clean. i see no reason for this code to keep reset...
April 07, 2014
2009 Smart Fortwo Passion 1.0L MIL Lamp on VIN: WMEEJ31X39
P2177: system lean off idle. we have looked into this atleast 3 different times. replaced the plugs and air filter. per techline bulletin. all readings look good fuel etc. cleaned the throttle body today. it was gummed up.air filter looks clean. i see no reason for this code to keep reset...
April 07, 2014
2009 Smart Fortwo Passion 1.0L MIL Lamp on VIN: WMEEJ31X39
P2177: system lean off idle. we have looked into this atleast 3 different times. replaced the plugs and air filter. per techline bulletin. all readings look good fuel etc. cleaned the throttle body today. it was gummed up.air filter looks clean. i see no reason for this code to keep reset...
April 07, 2014
2009 Smart Fortwo Passion 1.0L MIL Lamp on VIN: WMEEJ31X39
P2177: system lean off idle. we have looked into this atleast 3 different times. replaced the plugs and air filter. per techline bulletin. all readings look good fuel etc. cleaned the throttle body today. it was gummed up.air filter looks clean. i see no reason for this code to keep reset...
April 07, 2014
2008 Mazda 6 i 2.3L MIL Lamp on VIN: 1YVHP80C48
P2177: Lean Off Idle. ... Rich, P2177 Lean of Idle and P2187 Lean at Idle. Clear codes but they return on test drive. Purge solenoid has been replaced and tested. Checked for vacuum leaks, none found. STFT 25%, LTFT 5.0%. MAF seems to be right and fuel pressure within spec at 50#. ...
April 09, 2014
2008 Mazda 6 i 2.3L MIL Lamp on VIN: 1YVHP80C48
P2177: Lean Off Idle. ... Rich, P2177 Lean of Idle and P2187 Lean at Idle. Clear codes but they return on test drive. Purge solenoid has been replaced and tested. Checked for vacuum leaks, none found. STFT 25%, LTFT 5.0%. MAF seems to be right and fuel pressure within spec at 50#. ...
April 14, 2014
2004 Volkswagen Beetle GLS 2.0L Lean off idle VIN: 3VWCK31C14
P2177: Fuel mixture lean off idle. ... help on this one. I have this 2004 VW Beetle 2.0 BEV motor that is throwing a code P2177 off idle. This problem has been going on for some time and has been to at least one other shop. I have found that the short term fuel trims will ride at around 25% whi...
April 30, 2014