Catted DP's & New Software Question

Syndicategt · 03-20-2010, 10:29 PM

Question for anyone out there with catted downpipes that have the new BMW software. I currently own AR's catted DP's and never had my software updated on my 08. The DP's run great and I never had a CEL or any other error codes. Lately I been having long cranks, so I took my car in to get the HPFP check out. The SA told me BMW's new solution is to update the car's software as well as the new 943 fuel pump (something like they use less fuel pressure now).

So here's my dilemma. I've heard that the new BMW software will cause the current catted DP's (non HJS) to throw a CEL. Has anyone used catted downpipes and currently had their DME reflashed with the latest and greatest software? If so, are you experiencing any CEL's or is your car error free? If you do get a CEL, does the BMS o2 sim fix it?

Syndicategt · 03-21-2010, 09:44 PM

Friendly bump before I call my SA tomorrow, will probably go with new software and hope for the best.

JoeyFiasco · 03-21-2010, 10:10 PM

no idea meng, sounds like o2 sims are in your future

badass335 · 03-23-2010, 12:14 AM

my car is running the latest software with high flow catted downpipes and secondary cat deletes and yes, it's throwing cat efficiency codes. I have procede and still trying to find the optimal settings for them.....

Syndicategt · 03-23-2010, 12:10 PM

Ah great, not the news I wanted to hear. BMW just updated my software and they didn't mention anything about a CEL, maybe I'll get lucky? Does the BMS or Proceed O2 Sim fix work with catted DP's throwing these codes?

Syndicategt · 03-23-2010, 12:15 PM

Ah great, not the news I wanted to hear. BMW just updated my software and they didn't mention anything about a CEL, maybe I'll get lucky? Does the BMS or Proceed O2 Sim fix work with catted DP's throwing these codes?

03-20-2010, 10:29 PM	#1
Syndicategt Brigadier General 153 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Catted DP's & New Software Question Question for anyone out there with catted downpipes that have the new BMW software. I currently own AR's catted DP's and never had my software updated on my 08. The DP's run great and I never had a CEL or any other error codes. Lately I been having long cranks, so I took my car in to get the HPFP check out. The SA told me BMW's new solution is to update the car's software as well as the new 943 fuel pump (something like they use less fuel pressure now). So here's my dilemma. I've heard that the new BMW software will cause the current catted DP's (non HJS) to throw a CEL. Has anyone used catted downpipes and currently had their DME reflashed with the latest and greatest software? If so, are you experiencing any CEL's or is your car error free? If you do get a CEL, does the BMS o2 sim fix it? __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
	Appreciate 0 Tweet Quote

03-21-2010, 09:44 PM	#2
Syndicategt Brigadier General 153 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Friendly bump before I call my SA tomorrow, will probably go with new software and hope for the best. __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
	Appreciate 0 Quote

03-21-2010, 10:10 PM	#3
JoeyFiasco Major 22 Rep 1,211 Posts Drives: '09 Coupe Join Date: Aug 2008 Location: P'boro, UK iTrader: (0)	no idea meng, sounds like o2 sims are in your future
	Appreciate 0 Quote

03-23-2010, 12:14 AM	#4
badass335 Lieutenant Colonel 109 Rep 1,948 Posts Drives: 2017 540i Xdrive Join Date: Jul 2007 Location: Surrey, BC iTrader: (10)	my car is running the latest software with high flow catted downpipes and secondary cat deletes and yes, it's throwing cat efficiency codes. I have procede and still trying to find the optimal settings for them.....
	Appreciate 0 Quote

03-23-2010, 12:10 PM	#5
Syndicategt Brigadier General 153 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Ah great, not the news I wanted to hear. BMW just updated my software and they didn't mention anything about a CEL, maybe I'll get lucky? Does the BMS or Proceed O2 Sim fix work with catted DP's throwing these codes? __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
	Appreciate 0 Quote

03-23-2010, 12:15 PM	#6
Syndicategt Brigadier General 153 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Ah great, not the news I wanted to hear. BMW just updated my software and they didn't mention anything about a CEL, maybe I'll get lucky? Does the BMS or Proceed O2 Sim fix work with catted DP's throwing these codes? __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
	Appreciate 0 Quote