CEL Code P2187 & P0171
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From: Houston
2009 C63, 2500HD, OlllO Rubicon
CEL Code P2187 & P0171
CEL came on today. Does anyone know what these two codes are. I believe P0171 is mass air flow but I have no idea what P2187 is. Anyone?
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From: North Jersey
2012 CTS-V
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From: Livingston NJ
C63, Grigio Medio E46 M3
P0171 is the same code i keep getting. 
Havent had time to take it to the dealer. Nothings changed on my car in 12k miles. Ive already change the gas cap, and Purge Valve. I dont have charcoals, but they have been removed sine 1200 miles.
Some guys say it might be the intake manifold gasket, or maf sensors.
Havent had time to take it to the dealer. Nothings changed on my car in 12k miles. Ive already change the gas cap, and Purge Valve. I dont have charcoals, but they have been removed sine 1200 miles. Some guys say it might be the intake manifold gasket, or maf sensors.
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From: Houston
2009 C63, 2500HD, OlllO Rubicon
I dropped it off at the dealer this morning. I've removed the charcoals and added K&N 12 months ago. This is the first time my CEL has come on. I've had my Euro tune for almost a year as well. Never had a prblem before.
I'll keep you posted when I get an update.
I'll keep you posted when I get an update.
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From: North Jersey
2012 CTS-V
P0170-0174 codes very often relate to a MAF malfunction. Other possibilities are intake and vacuum leaks, airbox/airstream obstruction, plugging cat, marginal O2 sensor and even a dirty air or fuel filter.
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From: Houston
2009 C63, 2500HD, OlllO Rubicon
Update:
They replaced the Purge valve and covered a mirror lens cover under warranty. No mention of my tune or K&N with no charcoals.. The question is did they reflash the car. I'll know this afternoon.
They replaced the Purge valve and covered a mirror lens cover under warranty. No mention of my tune or K&N with no charcoals.. The question is did they reflash the car. I'll know this afternoon.
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From: Desert
02 CLK 55 AMG,09 C63 loaded with P30
P0171 is the same code i keep getting. Havent had time to take it to the dealer. Nothings changed on my car in 12k miles. Ive already change the gas cap, and Purge Valve. I dont have charcoals, but they have been removed sine 1200 miles.
Some guys say it might be the intake manifold gasket, or maf sensors.
Havent had time to take it to the dealer. Nothings changed on my car in 12k miles. Ive already change the gas cap, and Purge Valve. I dont have charcoals, but they have been removed sine 1200 miles. Some guys say it might be the intake manifold gasket, or maf sensors.
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2009 040 Black C63, 2009 Arctic White G55, 2012 Storm Red CLS550 4Matic
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From: Desert
02 CLK 55 AMG,09 C63 loaded with P30
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I took my charcoals out and put K&N's in with 180 miles on the odometer
without any problems. I currently have 9500 miles.
The only times I had a cel was for a purge valve and a bad O2
sensor.
without any problems. I currently have 9500 miles.
The only times I had a cel was for a purge valve and a bad O2
sensor.
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From: Houston
2009 C63, 2500HD, OlllO Rubicon
Just an update.
Picked my car up and they did not flash the ECU. They replaced the purge valve and cleared the codes only. I talked to my SA and she was very clear that the car was not flashed. Happy days!!! Wahoo!
Picked my car up and they did not flash the ECU. They replaced the purge valve and cleared the codes only. I talked to my SA and she was very clear that the car was not flashed. Happy days!!! Wahoo!
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From: Livingston NJ
C63, Grigio Medio E46 M3
Hope its truly fixed, as I had the purge valve replaced, and the light came back a few weeks later. I dont have charcoals, but they were removed over 10k miles ago, so I dont believe thats the problem.
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From: Relocated
2010 Irridium Silver MB C63 AMG Sedan
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From: Northern NJ
2009 C63
hey guys, i'm getting the same codes shortly after my 50k service (same day actually).. looks like this is due to purge valve and/or something with the air filters? Seems to be running fine..
I have an appt with the dealer but it's a few days from now. is it OK to by driving around with this?
I have an appt with the dealer but it's a few days from now. is it OK to by driving around with this?
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From: Brooklyn, NY
2010 E63
I also just got the P0171 code, lights stayed on for 2 days then disappeared and hasn't come back since. Ordered myself some K&N filters going to remove charcoals when installing them and see what happens.
I hate going to the dealer for anything thats not serious I would rather fix the car myself out of pocket if its nothing major. If tuning the car will it cause complications going to the dealer for anything in the future?
I hate going to the dealer for anything thats not serious I would rather fix the car myself out of pocket if its nothing major. If tuning the car will it cause complications going to the dealer for anything in the future?
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2017 Mini Cooper S Clubman ALL4 - British Racing Green
I just got my car back from the dealer, I had a CEL last week (just before I went ouf of town)
The codes I had were:
0745 - mixture bank 1 is too lean
2091- mixture bank 1 is too lean at idle
Both my right and left intake manifolds were leaking, they replaced the gaskets as well as the bolts.
The codes I had were:
0745 - mixture bank 1 is too lean
2091- mixture bank 1 is too lean at idle
Both my right and left intake manifolds were leaking, they replaced the gaskets as well as the bolts.
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From: San Jose, CA
2007 E63 w/P30 and Eurotech CF Diffuser
