Uneven idle FBO, codes here

napeHbNYC · 03-03-2015, 07:08 AM

Hey, guys, my car is FBO and I'm running STG 2+ aggr on Cobb, recently my idle became uneven and I have a weird vibration at idle, also when I rev the car up a bit, the rpm falls below 600 and then climbs up. I didn't get a chance to log yet but checked the codes today and this is what I got:
H29D0
H29D1
H29D2
H29CC
H2FCA
H2FDA
Are these the normal codes for the catless dps or what is and what is a possible trouble with this combination?
My injectors were replaced a year ago along with the spark plugs. Car is a 2010 with 30k miles, N54.

Thank you!!!

Aashenfox · 03-03-2015, 07:20 AM

Sounds like bad news. I don't know for sure, I'm quite new to the platform, I just did a quick search to see if I could find anything relevant for you. This post refers early warnings of HPFP, like I say, I'm no expert, just basing on two threads I saw. Seems like they are misfire related codes. Here's the more pertinent one.

http://www.e90post.com/forums/showpo...15&postcount=4

At least you are well in warranty for HPFP.

03-03-2015, 07:08 AM	#1
napeHbNYC Captain 234 Rep 990 Posts Drives: 2007 e60 550i RWD 6MT Join Date: Feb 2013 Location: NY,NY iTrader: (7)	Uneven idle FBO, codes here Hey, guys, my car is FBO and I'm running STG 2+ aggr on Cobb, recently my idle became uneven and I have a weird vibration at idle, also when I rev the car up a bit, the rpm falls below 600 and then climbs up. I didn't get a chance to log yet but checked the codes today and this is what I got: H29D0 H29D1 H29D2 H29CC H2FCA H2FDA Are these the normal codes for the catless dps or what is and what is a possible trouble with this combination? My injectors were replaced a year ago along with the spark plugs. Car is a 2010 with 30k miles, N54. Thank you!!! __________________ 2010 Alpine White E90 335i RWD 6MT M/Premium/Cold
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03-03-2015, 07:20 AM	#2
Aashenfox Captain 128 Rep 664 Posts Drives: 08 E92 335xi 6AT Join Date: Jan 2015 Location: Brit in Greece iTrader: (0)	Sounds like bad news. I don't know for sure, I'm quite new to the platform, I just did a quick search to see if I could find anything relevant for you. This post refers early warnings of HPFP, like I say, I'm no expert, just basing on two threads I saw. Seems like they are misfire related codes. Here's the more pertinent one. http://www.e90post.com/forums/showpo...15&postcount=4 At least you are well in warranty for HPFP. __________________ 08 E92 335xi 6AT, Sapphire Black Metallic Modlist: 19x8.5+32/19x9.5+35 BBS CH-R Black, Michelin PSS 225/35/19 - 255/30/19, rolled rear fenders \| KW v3 coilovers \| Akrapovic exhaust Keep it on the black stuff shiny side up! Last edited by Aashenfox; 03-03-2015 at 07:33 AM..
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