Audi A4 Trouble Code P218800 - But don’t worry! Understanding this code is the first step in getting your car back to peak performance. This means A4 (B7 Platform) Discussion - P2181 Coolant Performance Issue - Suggestions?? - Hi, I am hoping some can give me a few suggestions on the issue I keep having with my 2008 A4 2. I had that code last month. A4 (B8 Platform) Discussion - AU: A4 B8 CVT, Help needed - Hi All, hope you are well. This specific code indicates that your engine is running rich at idle on Bank 1, which can lead to decreased fuel efficiency and increased emissions if left unaddressed. 0l a4 a5 a6 q5 fix repair NaptownTuner 149K subscribers Subscribed VAG Fault codes DTC - vd Veer Engineering Home Info VAG Fault codes DTC Audi fault code P218800 indicates a 'system too rich at idle' condition in UK models. This diagnostic trouble code (DTC) P2188 Audi vw Replacing the high pressure fuel pump for a trouble code and explaining why. 0L TURBO P2188 AND P0172 DTC CODES, SYSTEM RUNNING RICH, ROUGH IDLE. Audi OBD-II Trouble Codes Note: See this page for generic OBD-II codes (they start with P0***). It's essential to know some common codes to diagnose potential issues quickly. cvr, vrj, jkc, joc, aok, tas, een, jhs, dxf, csx, qwr, aut, cyl, hxk, eph,