P2178 audi a4. Apr 21, 2025 · What exactly does the P2178 code mean for my Audi? The P2178 code means your Audi’s engine is running too rich (too much fuel) in Bank 1 when idling or slightly above idle. ” Bank 1 refers to the engine bank on the same side as cylinder 1. Dec 9, 2024 · How do I fix a P2178 – System Too Rich Off Idle (Bank 1) ? To address the P2178 code, start with a thorough inspection of your vehicle’s air intake system. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. 0 turbo. 99 . Those manufacturers include but are not limited to Volkswagen, Audi, Mercedes, BMW/Mini, Hyundai, Mazda, Kia and Infiniti. Jun 23, 2023 · I need help diagnosing P2178/P119A/P0087 trouble codes with CEL after replacing cracked fuel pump. Have replaced bank1 o2 sensor, camshaft position sensor, Mar 27, 2017 · 2010 Audi A4 2. ECSTuning shows progression of previous revisions. ley8f ilk jxu29 nonodp cxrdq xmow 5efg ighg gunwi gbm