Question about 2003 Mercedes-Benz C-Class

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Cod. fault p0172. type 203t mercedes

Cod.fault p0172.type 203t mercedes

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  • emmwangi2002
    emmwangi2002 Aug 09, 2012

    can this problem show engine light?

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This means that it has detected a rich condition. You can get this with a dirty maf sensor suually caused by paper filters, a vacuum in a hose or connection or a fuel pressure problem.
Dirty mafs are easily cleaned even at home with maf spray cleaner. As long as you are careful not to physically touch the actual'sensor you can't hurrt it if it is still good.

Posted on May 31, 2012

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Posted on Jan 02, 2017

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Hi. I went to autozone and diagnosed with code p0172 on my 2005 Lexus GX470. I have vsc trac, vsc off, anti skid, and check engine light on. The lights come on for about 100 miles and goes off for same...


You own a high end luxury vehicle as do I, 2005 ES330, the dealership is the best place to get Lexus problems fixed. With my own vehicle, I had a thermostat fault code come up, and like you it would reset itself and come back. The code said it was the thermostat and I queried it with my tyre guy. He also said it is a thermostat code. I said but it isn't overheating. He told me that the computers in Lexus are so clever they are actually looking for the water to reach x degrees in x minutes. He replaced the thermostat, the fault never came back. Anyway back to your P0172 Error code.

https://www.autocodes.com/p0172_lexus.html

Possible causes
Faulty front heated oxygen sensor
Ignition misfiring
Faulty fuel injectors
Exhaust gas leaks
Incorrect fuel pressure
Faulty Mass Air Flow (MAF) sensor

The first thing I would try is that stuff that you add to your fuel to clean the injectors.

Read more: https://www.autocodes.com/p0172_lexus.html

Pull codes P0172/P0175, need help diagnoising - ClubLexus - Lexus ...

https://www.clublexus.com > ... > IS Models > IS - 2nd Gen (2006-2013)Jul 6, 2013 - IS - 2nd Gen (2006-2013) - Pull codes P0172/P0175, need help diagnoising - My check engine light, VSC, and traction light all lit up yesterday. I pulled ... Title: 2GR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0171,P0172,P0174,P0175; System Too Lean (Bank 1); 2006 MY IS350 [08/2005 - ] DTC System too rich ( Bank 1 & Bank 2 )
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Dirty Mass Air Flow Sensor P0171, P0172, P0174 Codes - YouTube

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A common cause for lean condition codes is simply a dirty Mass Air Flow Sensor. Since I have been testing ...

code p0172 on my 2005 Lexus GX470 Google Search

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1996 Volvo GLT 2.0 valve, got two codes need to know what to do to fix them P0440, P0172.


http://www.datsc.com/tabid/122/OBD-Error-Code/P0440/Diagnostics/volvo/Default.aspx

And

http://volvospeed.com/vs_forum/topic/9451-ecu-fault-code-p0172/


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Need unlock cod for mercedes E 200 1995


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I took my car to a mechanic for my check engine light. It came up with 9 codes. P0455, P0172, P0302, P0304, P0305, P0300, P0301, P0303, P0172. I have replaced all the plugs and wires and whatnot. (not sure...


All the P0300 codes are engine miss codes. The P0455 is a catalyst inefficiency code and the P0172 code is a rich mixture code. All of these could be caused by faulty oxygen sensors. What kind of car, engine size and mileage is it?

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How to fix fault code p0238 on a 2004 vw passat


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Go check out http://volkswagen-polo-highline.blogspot.com

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P0172 p0175 07 c230


Hi, these faults are for a rich self adaption mixture i.e. your exhaust lambda sensors are not detecting enough oxygen. A multitude of things may be causing this fault but I can advise on the most common. - remove the top engine cover and check the round seal at the back to ensure it is correctly fitted - ensure the air filters are not blocked - may be caused by a faulty Air flow/mass sensor - faulty lambda sensor (four fitted to this vehicle) - ensure spark plugs are ok

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P0172 Fault


P0172 is a trouble code that is set when the ECU senses that there may be too much gasoline present in the air-fuel mixture of the engine. A proper air-fuel ratio of about 14.7:1 is vital to obtain maximum engine power and fuel economy

The fuel mixture grows rich and eventually, the code sets. An "over reporting" Mass Air Flow Sensor can be a common cause of a code P0172 and P0175. Essentially, this means that the Air Flow Sensor is telling the computer that much more air is entering the engine than actually is.

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5 error cods on my 2002 Jetta GLS 1.8 Turbo Engine


P0420= Catalyst System Efficiency Below Threshold Bank 1
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P0301=Cylinder 1 Misfire Detected
P0172=System Too Rich Bank 1
P2181=Cooling System Performance
you need to write these down,have someone clear the codes in the car,then go for short ride and recheck which if any code reappears.it's like domino's affect,one sensor can start a chain affect with the others.

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1 Answer

I have a 2004 dodge caravan i get p0172 fault code


p0172 fuel system to rich , p2097 fuel mixture high downstream , p0480 cooling fan relay, hope this helps

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CAR HAS CODES P0172 AND P1390


P1390 is your timing belt is off by a tooth or two, P0172 is a rich condition fault that may be a result of being out of time

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