P0172 m271
P0172 m271. | Image Source: Richard McCuistian. Car running well and I get the engine warning light. Khemanan Location Offline Junior Member Reputation: 0. The two cars differ only in the exact pistons used making the compression ratio in the C200 slightly lower. DTC code 0746 and 0750 the mixture is P0172 is a time-consuming and labor-intensive repair job. This trouble code indicates that there’s a low condition within the mass air flow sensor or circuit. Mar 15, 2007 · 6 posts · Joined 2006. Go to section 6-23 and there is a category for changing the PCV valve on the 1. With that in mind, either too much fuel or not enough air can cause a vehicle to run rich. Touch device users, explore by touch or with swipe gestures. My scanner icarsoft mb2 show the fault p0172. It will misfire and run lumpy, I turn it off and restart and it runs fine. In your Honda, the P0172 code means there is too much fuel or not enough air in Bank 1. Dec 12, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Q. 77 M271 p0130 sensors leaking p0172 codes w203 mbworld. surveymonkey. With code P0172 System too rich. However, the cost of the replacement parts is fair enough. I was hoping you could give me a diagram and instructions on how to fix the problem. 08/33. Kebocoran vakum di dekat mesin. Code P0102 - Mass or Volume air flow circuit Sep 29, 2017 · Mercedes-Benz owners may notice the check engine light plus P0170 and P0173 codes. supercharger change oil / strange sound. view all petrol gasoline & diesel engine manuals. 05 Dec 2023. I took my 99 E320 in for inspection the other day and the check engine light comes one. A rich fuel mixture contains too much fuel in relation to air. really pleased, but now the engine light has come back on and I have the misfire back. Diagnosis: It is important to complete the entire diagnostic process Nov 21, 2018 · Fuel System Too Rich. 생성일: 2022년 10월 23일 3:45 오후 (1) 2007년 벤츠 W211 E280P 엔진경고등 P0172고장코드 발생, MAF센서 교환등 작업후에도 지속적으로 고장코드 발생함 P0016: merkitys, syyt, korjaukset. The MAF is commonly ch Jul 30, 2014 · P0172 Mercedes-Benz – System Too Rich Bank 1. Jan 7, 2023 · The P0102 code is set when the Powertrain Control Module ( PCM) detects that the mass air flow (MAF) sensor frequency signal isn’t performing in the normal expected range set by the manufacturer. This diagnostic trouble code (DTC) is Jul 17, 2009 · Fault code P0172 is a generic code for "system too rich" -- so the car is running rich This could be down to a faulty EGR valve or a faulty 02 sensor ( lambda sensor ) fuel pressure issues or injector issues Code P0171 - Is for - system too lean. . I have thought it was tied to timing issues. Yes there is one. P0172 System too rich bank 1, and P0175 Bank 2. P0172 is thrown when the oxygen sensors detect that the air-fuel mixture is too rich. 8L) Running rich and high CO emission. Most of the time, these Mercedes-Benz fault codes are caused by a defective Mercedes Mass Air Flow Sensor (MAF) sensor. They are not expensive and MAFs are often difficult to clean so check them out. If it is that then oil has wicked in the wires and has caused the O2 sensor to go bad. Code p0171 came back. 6L, benzin, 156hp: Motor: P0300: Otkriven je slučajni/više cilindar(i) preskakanja paljenja: M271 KE16 ML: 1. 7 If the ratio is too far out of the normal range, it can seriously affect the engine’s performance and the driveability of the vehi Apr 14, 2024 · Mercedes Benz CLK 200 W209. Test drive went ok, car was a lot quieter but no significant boost noted when accelerating. P0301 - cyclinder 1 misfire. P0171- System too Lean Bank 1. Your car’s computer will set the code when it determines that there’s too much fuel (or too little oxygen) in the engine’s air-fuel mixture. I had this issue on a 2001 SLK230. 자료분석에 사용되는 센서값 현대 LF쏘나타 뉴라이즈. Engine Number: 27194630861788. P/N A 271 094 02 48. NOTE:The oxygen sensor couldn’t care less about unburned fuel in the exhaust stream–the sensor is designed to The meaning of fault code P0172. It is common for most auto repair shops to charge between $75 and $150 per hour. And if the car has been regularly serviced using the correct engine oil (MB Spec Sheet 229. Faulty Front Heated Oxygen Sensor. So, when it was time for the service, I decided to change the oil in the supercharger as well (along with the usual Sep 2, 2022 · More recently, ECM/PCM controlled electric air pumps have replaced the belt-driven ones. The car is throwing the following DTC codes: P0170, P0137, P0172, P0138, P0136 Sep 2, 2019 · M272 P2188/P0172/0746 Rich Idle Thread starter A209; CLK 200 Kompressor (M271 1. The P0170 (Fuel Trim Bank 1) and P0172 (System Too Rich) seem to be the ones that return when cleared. I've heard and read that the oil from the compressor (supercharger) also needs to be changed. This is for the partial load hose crankcase connection fitting and replacing the front Dec 20, 2014 · Removal procedures for the 03-05 1. Yes, the legendary PCV hose got broken. 6L, benzin, 156hp: Motor: P0325: Kvar u krugu senzora detonacije 1 (reda 1 ili jedan senzor) M271 KE16 ML: 1. It seems the bank 1 sensor 2 is just throwing codes at random and they dont immediatly return. Jul 5, 2022 · Improper removal and installation of the air cleaner sealing ring can lead to codes indicating that the system is running rich, self-adaptation faults P0172, P0175, P0337, P0338, P0341 as well as a fluctuating idle at operating temperature. 8 liter (1,796 cc) and was produced from 2002-on. Nov 21, 2022 · Unfixable P0172 code R171,W204,W209 M271 kompressor. And a code set during high or part load can be a fuelling issue or an erroneous sensor signal. The lean condition can be caused by a vacuum leak, which introduces more Nov 21, 2018 · Fuel System Too Rich. Nov 12, 2021 · How do you find a vacuum leak easily on a car? You use a smoke machine to introduce smoke into the vacuum system and look for visible signs of leakage coming P0110 Intake Air Temperature Sensor 1 Circuit; P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance; P0112 Intake Air Temperature Sensor 1 Circuit Low Jul 1, 2015 · 31794 posts · Joined 2005. P0016: merkitys, syyt, korjaukset. The car seems to be running rich too. Hopefully someone here will have an idea! I recently changed my high pressure fuel pump, HPFP, the day after replacing the pump my car would idle really rough and misfire for 45 seconds then itll rev up 1500-2000 rpm and drop back down to right below 1000 rpm. Jul 11, 2013 · Hi Guys. com/r/WellsTechIn this video we go over a mass air flow sensor diagnosis step by step. Anybody out there experience the same after a plug/filter change? Feb 2, 2018 · P0101- Mass/Volume air flow A circuit range performance. Bank 1 refers to the engine bank on the same side as cylinder 1. This could be caused by a faulty MAF sensor. Jun 5, 2021 · 看图猜故事😬如果在m272 engine同时间出现这两个fault code （P0172-P0175）可以看看这个配件，这个是通病 Sep 7, 2022 · Code P0172 Mercedes-Benz Possible Causes. May 13, 2014 · 222 posts · Joined 2007. I take the car up to autozone today and I get these codes P0170 and P0172. ”. youtube. Faulty Spark Plugs. 3/229. 0. Kode tersebut dapat menyiratkan hal berikut. Feb 3, 2017 · 11408 posts · Joined 2006. This means that there is too much fuel and not enough air entering the combustion chamber. The challenge is to get from 143bhp to 163bhp without damaging anything. Thanks Given: 17 Thanks Received: 2 (2 Posts) May 1, 2024 · By Richard Craver Updated on May 1, 2024. The code is set once your ride’s ECM/PCM is not able to detect the difference in the desired camshaft position angle and the actual camshaft position angle. Carbon can still block the secondary air injection valve at the back of the motor, throwing the PO410 code. M readiness it tells me that my second. W211 E200K P0171 희박 System Lean 고장코드가 떠서 진공호스 교환등 했는데도여전히 고장코드가 떠서 스트레스 입니다. May 2, 2020 · If a load or condition is included in the fault code this can be an advantage during diagnosis. 2007년 벤츠 W211 E280P 엔진경고등 P0172고장코드가 생겼습니다. P201C Erratic idle. Here are the probable parts you will replace to fix the problem. pardiserwis. . 2. [P0172]" So I did a smoke test on the car. The worst is the oil has gotten to the ECU The contents of this forum are for experimental & educational purposes only. VIN: WDC2030462R261104. Car is 05 c230 Kompressor w/59k MILES well maintained. This fault code is stored in the Engine Control Module ( ECM) when the ECM is no longer capable of controlling the air fuel ratio. Repair Urgency: Get this code fixed as soon as possible to avoid catalytic converter and exhaust system damage. 생성일: 2022년 12월 16일 10:53 오전 (1) 메르세데스 벤츠 차량 스캔중. When putting the engine under load it would subtract up to -7% and when at idle it would shoot up to around +10%. May 1, 2016 · Persistent Code P0017. Download: MB E-Class W210 W211 Multi Engine Service Manual. Mar 28, 2022 · P0130 definition: Oxygen Sensor Circuit Malfunction (Bank 1, Sensor 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. May 9, 2018 · May 9, 2018. It probably has nothing to do with jump starts or big puddles. P0172 Mercedes-Benz Code - System Too Rich Bank 1. Bought a code reader and it comes up P0171 system too The P0011 DTC stands for “A” Camshaft Position Timing Over Advanced or System Performance Bank 1. welwynmerx. Sander11; Aug 24, 2023; Engine; Replies 4 May 17, 2010 · Simon and I have been exploring the idea of being able to turn a C180k M271 into a C200k M271 by means of remapping alone. P0172メルセデスベンツDescription. Used the OEM bosch plugs and replaced the air filters with the Mann brand. Tel: 01707 395999 www. Remained off for 300 miles. The A/F ratio for ideal combustion is 14. This diagnostic trouble code (DTC) is Mar 5, 2022 · I just finished swapping out a rattling M271 supercharger with used one from a MB used parts dealer. Sep 19, 2023 · The diagnostic trouble code(DTC) P2178 indicates “System Too Rich Off Idle Bank 1. As such, it is not acceptable whatsoever to publish any software that is bound by any legal restriction. Hello, I got a code that my rod knock sensor is bad and needs replacement. Apr 18, 2009 · P0170-0174 codes very often relate to a MAF malfunction, especially after 60-80K miles. 7:1 by mass. CEL came on after 10 minutes so back to garage very disappointed. 6 L (1,597 cc) and 1. 8L C230 Kompressor. Normally a code set during idle or light load is relating to an air leak. You can try cleaning the sensor, but that doesn’t always work. - Rodney. For correct operation of the catalytic converter the ECM is required to keep the air fuel ratio (AFR) at approximately lambda 1, this equates to an AFR of 14. However, it’s important to make the distinction that for codes P0172 and P0175, where the issue lies with the engine running too rich on either the Bank 1 or Bank 2 side of the engine block, the Sep 7, 2023 · P0172: Sistem prebogat (banka 1) M271 KE16 ML: 1. Diagnostic trouble code (DTC) P0172 stands for “Fuel System Too Rich (Bank 1)”. It can be triggered by a faulty camshaft actuator, failed VVT solenoid, damaged Apr 1, 2024 · Hi! My car recently failed a emissions test because of too high CO. 엔진경고등 p0172 연료학습제어 혼합비 농후 뱅크1 약4달전에 동일 경고등으로 블루핸즈 입고 산소센서 1번 교체후 경고등 소거하였습니다 그 이후 약 2달정도 경고등은 미점등 5월경 간헐적 시동지연증상이 있은 이후 출발시 가속페달을 Dec 10, 2018 · M271 Engine . P0172: merkitys, syyt, korjaukset. When I look in the "live data" it tells me there is a "second air error". Removal of the mass airflow sensor requires the removal of the air cleaner box. Hello everyone, I have a 2004 Mercedes CLK 200 Kompressor (C209). Oldspanners Senior Member. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Check out the easy/cheap stuff, change the filters, clean the MAF, see if that clears it up. #1. Jan 4, 2022 · After 137,000 km range, my Mercedes Benz E300 W212 M272 engine gets the warning light. 7:1). 5) then the chances of failure are lower. TURBO. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. You might also see P0137, P0140, P0141, P0161 or P0172 on your code scanner. Take care and enjoy When autocomplete results are available use up and down arrows to review and enter to select. 0 hour of labor. The codes thrown are P0172 and P0175. The code is for the right bank (passenger side) exhaust cam position sensor. 8L is the M-271. 8L C230 US model, then I beileve the OE MAF is a Siemens, not a Bosch and it's more, about $260 was the best price I saw (again, based on the C230). 8 that would occasionally trigger the check engine light. May 11, 2018 · You will find all the videos I made about this Mercedes w203 in a Playlist :https://www. The engine burns a balanced mixture of air and fuel to produce power. Theoretically, these two codes mean the fuel mixture is too rich or too lean. The MAF sensor is a common problem but also there is a pipe that splits and is very common to cause this, check the link below https://www. #8 · Feb 4, 2017. Once going, it seems to run fine as normal. P0172 means that the air-fuel mixture is too rich for the car engine parts to run effectively, containing too much fuel or too little air. (pulled with Torque and an ELM327) P0313 - Misfire with low fuel. 8 engine. I find there are 4 of them so I wanna do my homework before I just go out and buy them. I’m not to sure where the rod knock sensor is located. air is OK. 7 parts air to 1 part fuel (14. So your system is struggling to balance the mixture. Wonder if that was the cam sensor. https://www. P0172 Mixture is too rich in part-load range. uk. Hi all, My W203 C180K has started to misfire on start-up. Exhaust Gas Leaks. It's been happening, occasionally, for a few months, but now becoming more regular. Q. Dec 5, 2023 · How to fix p0172 engine code in 2 minutes [2 diy methods / only $8. Car runs fine, no erratic idle even w light on. Multiple reasons can trigger this code, and a mechanic must diagnose the specific cause so that you can fix the problem. P0016: Kampiakselin asento ja nokka-akselin asento eivät korreloi (puoli 1, anturi A) Vikakoodi P0016 tarkoittaa käytännössä sitä, moottorin puolella 1 olevat kampiakseli ja nokka-akseli ovat virheellisessä asennossa. #6 · Jul 9, 2020. #1 · Mar 15, 2007. com/https://www. Original fault codes pointed to Camshaft timing faults, (exhaust) Upstream o2 sensor and downstream o2 sensor. However, this symptom could also mean a p0022 ford f150. The engine made its debut in the Mercedes C-Class (W203) and was later used in the E-Class , as well as in other models with lower volume. By the way, P0171 is mixture too lean Bank 1 and P0172 is mixture too rich Bank 1. 카센터는 산소센서나 MAF 센서는 정상이라고 합니다. I don't have a listing on this part number, that or I have a different vent hose, there is a TSB for this condition P0172 for the MBZ which is DTC P2029 / P2046, TSB # P-B-07. P0172- System too Rich Bank 1. As a result, the fuel economy becomes much worse, and you’ll have to fill up your fuel tank more often. 梅賽德斯-賓士C系列 （德語： Mercedes-Benz C-Class ）是 梅賽德斯-賓士 （以下簡稱為「賓士」）的小型 主管房車 （Executive car）產品系列，除了標準的四門 房車 外，該車系尚有五門 旅行車 款式。. I have had this a couple of times but intermittent/in frequent. Aug 24, 2023 · The car is throwing the following DTC codes: P0170, P0137, P0172, P0138, P0136, P0141. Ignition Misfiring. Jun 6, 2013 · So three weeks after clearing these codes the check engine light came on again yesterday. Kode P0172 menunjukkan bahwa sistem bahan bakar memiliki campuran udara-bahan bakar mesin yang terlalu kaya atau tidak mencukupi. 6L, benzin, 156hp: Motor: P0335: Neispravnost kruga senzora položaja Feb 21, 2022 · Too much fuel and/or too little air results in the engine running rich setting a P0172 trouble code (read more about it in our guide here), while too little fuel and/or too much air results in the engine running lean resulting in a check engine light for the P0171 code. It can be caused by issues such as a faulty mass airflow sensor, oxygen sensor, or fuel injector. Joined Oct 30, 2017 Messages 1,498 Reaction score 1,623 [P0172] P2029-002. "201c-2 Self-adaptation of the mixture formation, The mixture is too lean in the partial load range. I have a 2013 c250 160k miles with the M271. Replaced fuel filter,air filter and cleared code. 115,000 MILES. My local indie, replaced the MAF last week, the car felt like a missile. These adjustments are referred to as fuel trim. When is the code detected? – Fuel injection system does not operate properly. Jun 25, 2020 · 11865 posts · Joined 2020. BMW P0172 Code: Mixture Control System Too Rich Bank 1 The BMW P0172 code is a diagnostic trouble code (DTC) that indicates a problem with the fuel system in BMW vehicles. com/watch?v=BoeXrXZ2TnQ&list=PLnqEIg0csmbEKmhqN35PWJWokCZtmxp Nov 21, 2018 · Fuel System Too Rich. 3L is the type 111 and the 1. 이 친구는 지난 몇 개월동안 간헐적인 시스템 희박(p0171) 과 농후(p0172) 고장코드로 고생했다. 고객과 함께 베콤카의 진단결과대로 정비하여 p0171 p0172 고장코드가 해결되었다. Sep 21, 2016 · Welwyn Merx Limited is a family run business with genuine passion, dedication and 25 years of experience dealing with Mercedes-Benz and AMG passenger cars. But the issue is serious enough to cause concern, even on properly-serviced cars. #Naveed#carcare Sep 29, 2022 · Labor: 1. Ajoneuvotietokone havaitsee tämän anturin A lähettämän epätavallisen signaalin Jul 23, 2012 · The typical M271 engine issues are: Split vacuum hose and/or blocked engine breather (both located under the air cleaner box) Oil-in-loom - leak from one or both camshaft position sensors at the front of the engine, allowing oil to creep up the loom and contaminate the ECU Timing chain and gear issue - the simplex timing chain and/or the sprockets fail which can result is serious valve and Apr 23, 2014 · P0172 - bank 1 running rich Then the odd misfire and what felt like a cylinder shutting down. Dec 30, 2023 · Ford code P0172 is a diagnostic trouble code that indicates a rich air-fuel mixture in bank 1 of the engine. #1 · Jan 27, 2010 (Edited) pulled cel code p0171. Feb 3, 2020 · c250 Cold Start Misfire. P0102- Mass/Volume air flow A circuit low. Since this seems to happen when you hit a speed bump or stop and start the car, I suspect it may be a wiring problem. Proper diagnosis and repair are necessary to May 29, 2020 · 0. However, it’s important to make the distinction that for codes P0172 and P0175, where the issue lies with the engine running too rich on either the Bank 1 or Bank 2 side of the engine block, the ***SURVEY*** https://www. Mercedes M271 Petrol Engine Manuals. ECM ）実際の比率と理論上の比率との間のオフセットを補正するために必要な Sep 29, 2022 · Labor: 1. Kode tersebut muncul ketika terlalu banyak bahan bakar pada gas buang yang mengalir dari ruang bakar. Selfadaption of mixture formation at lean stop May 17, 2012 · Get yourself a Haynes Manual ( manual number 63040--2001-2007 C-Class). Vacuum leaks $100 to $150. Feb 3, 2019 · Model: 2007 C180 Kompressor Auto. You said magnetic on the front of the engine. May 2, 2020 · Description. 4 CYL. Other culprits are intake and vacuum leaks, airbox/airstream obstruction, plugging cat, marginal O2 sensor and even a dirty air or fuel filter. 8L. Faulty Mass Air Flow (MAF) sensor. Incorrect Fuel Pressure Faulty Fuel Injectors. AUTOMATIC. The ideal air-fuel ratio, known as the stoichiometric ratio, is about 14. 고장코드별 원인분석후 정비작업이 필요하다. The guy that inspected it says its my oxygen sensors. Jun 25, 2017 · 1 Answer. 8 Engine ( M271). As the engine warms, the air from a belt-driven pump is either exhausted through a muffler/filter to the atmosphere (on deceleration), or, when the engine is loaded (even idling), the air is directed downstream to assist the HC/CO cat process those exhaust gasses. Possible causes – Faulty front heated oxygen sensor – Ignition misfiring – Faulty fuel injectors – Exhaust gas leaks – Incorrect fuel pressure – Faulty Mass Air Flow (MAF) sensor. obd Nov 19, 2022 · Unfixable P0172 code R171,W204,W209 M271 kompressor. Specifically, it means that the mixture control system is too rich on bank 1, which can lead to a variety of issues with the engine’s performance and efficiency. Diagnosis: It is important to complete the entire diagnostic Jan 27, 2010 · 12 posts · Joined 2006. Vikakoodi P0172 tarkoittaa, että moottorin polttokammiosta poistuvissa pakokaasuissa havaitaan liian suuri määrä polttoainetta moottorin ensimmäisellä puolella. It’s the job of the PCM to tweak the supply of both. Mar 21, 2017 · According to SDS, P0121 (DTC 2002-16) is definitely a problem with the accelerator pedal and nothing else. Jan 22, 2022 · Fixing Engine Too Rich Fault on Mercedes C180 KompressorHere at Ecuboot, we offer German Automotive Diagnostic Trainings such as: Mercedes, BMW, Volkswagen Apr 27, 2020 · Obviously not all M271 engine go belly-up at the 100,000 miles mark. If you read the codes using a basic OBD2 reader plugged into your diagnostic socket under the steering wheel, according to my list P0172 is 'System too rich - Bank 1'. Replace mass air flow sensor for $150 to $200. 梅赛德斯-奔驰C级. It throws up the engine management light sometimes, but not always. The history: About 3 months ago I had rather high Long Term Fuel Trim Values of about +16. C系列是在1993年時推出，以取代車廠原本的小型 Oct 28, 2020 · You need to go to the dealer or a shop that has a computer that will read all codes, one that is more complete than just an OB2 reader. SDS does have specific steps to diagnose problems with the throttle. #6 · Jul 21, 2015 (Edited) kgabzela, I sent you a PM, but I wanted to note that if this is the same blown 271 engine as the 1. MAFs and / or MAPs (I don't know which your car has) play a major role in this too. 空燃比自己学習制御では、加熱された酸素センサ1からの混合比フィードバック信号に基づいて実際の混合比を理論混合比に近づけることができる。. Have checked the wiring harness for oil Found plenty at the Cam adjuster on exhaust cam, exhaust cam sensor and both o2 sensors, slight amount at MAF and computer. Also, some bonus BMW diag!If you Dec 22, 2016 · Just like the title says, the check engine light came on a few hours after a spark plug and air filters change for my '06 R350. MHH AUTO Aug 18, 2022 · The consumption of fuel increases whenever there is an issue with the air-to-fuel ratio of the gasoline mixture, not just for the P0172 trouble code in Ford. To diagnose the P0171 Mercedes-Benz code, it typically requires 1. If you have followed my other posts you know I have been getting this code. I was hoping for some help with a w203 2002 c180 Kompressor. You had indicated that the 'changeover' valve is functioning, but I'm not sure if this is the same valve. 2WD. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. Clean mass air flow sensor $75 to $100. Hi allexperienced advice required again. Only a small proportion do. #2 · May 14, 2014. The Mercedes-Benz M271 is a inline straight 4-cylinder petrol engine produced in two displacements of 1. The first two sections of this same manual go into great detail on both 4 cylinders used on these cars, the 2. Ajoneuvotietokone havaitsee tämän anturin A lähettämän epätavallisen signaalin Jul 11, 2017 · Dear friends! My Mercedes c180 k 2006 engine m271 nota runing after litle time to engine stop. When I look at my I. I have not noticed the car running worse/rough or smell from exhaust but fuel consumption feels exsessive. Code reader said P0172 (fuel sys) and P0238 (supercharger boost sensor A circuit high). Apr 29, 2023 · 멋쟁이 왕눈이 메르세데스 벤츠 w211 e200k m271엔진 이다. After changing the secondary valve, my code went Mar 21, 2024 · All of the trouble codes P0030, P0031, P0130, P0131, P0132, P0133 and P0134 have to do with the oxygen sensors. com/Mercedes M271 Typowe usterki, rozrząd, sonda lambda, odma, check engine, uboga ,bogata mieszanka, P01 Feb 26, 2022 · P0172 definition: Bank 1 has too much fuel or not enough air. Codes are same as before. Cleaned MAF w CRC (didnt remove just sprayed hell out of it through Hello, I have a couple of fault codes showing on my (girlfriends) 2005 C180 Kompressor automatic with 80k miles. I dont no what to do, please help me. With this in mind, you can see any number of trouble codes relating to an air-fuel mixture imbalance that could ultimately be caused by the oxygen sensor. Tämän havaitseminen tapahtuu moottorin ilma-polttoaineseoksen seossuhdetta seuraavien erilaisten anturien, kuten ilmamassamittarin The M271 is a four-cylinder gasoline engine developed by Mercedes-Benz, which was produced from 2002 to 2015 in Untertürkheim near Stuttgart. It may sound not very clear but let me explain. the car will drive just fine. cv du ry wj hl wa us kg bs pw