P120D and P0171 together OBD codes??

GreenRacingM3 · 09-17-2020, 07:56 AM

Any thoughts?
2013 F10 M5
Mods
CatlDPs
Stage1 BM3 flash
Fresh plugs less than 5000miles from burger gapped right.

Symptoms driving: idle is rough, cant find a smooth 800 rpms

Boost leak? Intercooler pipes cracking? Inlet pipe?
About to do a smoke test etc.

Thoughts
Plastic pipes?
Injector failing on bank2?

Spacecpe · 09-17-2020, 12:18 PM

Did you check and clean the maf?

JusticeM5 · 10-08-2022, 07:09 AM

Quote:

Originally Posted by GreenRacingM3

Any thoughts?
2013 F10 M5
Mods
CatlDPs
Stage1 BM3 flash
Fresh plugs less than 5000miles from burger gapped right.

Symptoms driving: idle is rough, cant find a smooth 800 rpms

Boost leak? Intercooler pipes cracking? Inlet pipe?
About to do a smoke test etc.

Thoughts
Plastic pipes?
Injector failing on bank2?

Have you also changed your 02 Sensors?

09-17-2020, 07:56 AM	#1
GreenRacingM3 New Member 0 Rep 15 Posts Drives: F10 M5 Join Date: Jul 2019 Location: Midwest KY/IN iTrader: (0)	P120D and P0171 together OBD codes?? Any thoughts? 2013 F10 M5 Mods CatlDPs Stage1 BM3 flash Fresh plugs less than 5000miles from burger gapped right. Symptoms driving: idle is rough, cant find a smooth 800 rpms Boost leak? Intercooler pipes cracking? Inlet pipe? About to do a smoke test etc. Thoughts Plastic pipes? Injector failing on bank2? __________________ Exotic Cars & Coffee Louisville KY, 2011 M3 DCT 43K E93, 2014 X3 3.5i xdrive MHD Ceramic DP VRSF, Sold E93 335i, Sold, E90 335i, Sold M roadster, Sold 330i msport, Sold E60 08 V10 M5, Sold E90 335i, F10 BMW M5
	Appreciate 0 Tweet Quote

09-17-2020, 12:18 PM	#2
Spacecpe First Lieutenant 44 Rep 359 Posts Drives: E90 335i Msport Join Date: Sep 2014 Location: Winnipeg, Mb Canada iTrader: (0)	Did you check and clean the maf?
	Appreciate 0 Quote