Nov 16, 2015 · My P2177 saga (resolved) Jump to Latest 98K views 8 replies 8 participants last post by Rolf Taylor Oct 15, 2025 Flargen Discussion starter

May 9, 2007 · Hey guys, I just got my silver speed3 about 2 weeks ago. I already put about 1300 miles on it. I decided to put a custom ram intake on it, and I got a CEL code (P2177-system too lean off …

Jul 20, 2011 · The check engine light came on in my 2005 MZ3 S and the code it had was P2177. I have an Injen cold air intake installed pretty much since I bought the car and never had a problem so I …

Mar 23, 2011 · P2177 System Too Lean Off Idle Bank 1 Jump to Latest 104K views 39 replies 20 participants last post by wrencher60 Jul 29, 2018 shadowchameleon Discussion starter

Mar 15, 2024 · Le code P2177 indique une condition "System Too Lean Off Idle Bank 1", ce qui signifie que le moteur fonctionne de manière trop pauvre, avec trop d'air et pas assez de carburant, sur la …

Jul 22, 2011 · CEL - Dreaded P2177 Code (for no solvable reason) Jump to Latest 53K views 11 replies 10 participants last post by miata_racer Mar 18, 2014 B

Dec 23, 2011 · Codes P2097, P2177: Rough Idle, sputters, sluggish unable to build up boost Jump to Latest 31K views 12 replies 5 participants last post by vaspeed3 Jan 11, 2012 P

Nov 21, 2009 · getting P2177 "system too lean off idle speed". my 2004 jetta (auto) has only 40k on it and i started getting code p2177. any idea what it is and what the solution is? A couple weeks ago i …

Apr 13, 2020 · P2177 = Fuel system too lean at off idle P2187 = Fuel system too lean at idle List of possible causes for both codes: Misfire Front HO2s deterioration Front HO2s Heater malfunction …

Jun 24, 2025 · Hi, I've been trying to chase down a LTFT that spikes to 20.3% at light/medium loads. The LTFT is fine at idle. I've checked the intake system for leaks and put in a new PCV as well as …