Help:Check engine light on with cobb stage 2+

styles50 · 07-21-2013, 01:48 AM

Hey guys
I'm having this issue that the yellow service engine soon light turns on after installing my catless dp. I running cobb stage 2 +st aggressive. Everything was working fine no light no codes but I went on vacation and the car wasn't used for 2 weeks. Today I turned it on and this light came on. However the car feels great no rough idle no rattle every runs smooth and I feel the power just this damn light is on

im sure the o2sensors are installed right bc the car runs perfect but when I read the codes they say it's catalytic related. The car has 10k mls and I don't abuse it so it can't be any parts that needs to be replace. I clear the codes and it stays off the remaining time I'm driving but once I turn off the car and start it up again it comes on after 10min of driving

My next solution is to buy bms dp fix and leave it on.

I searched for hours even went into other car forums that are running cobb but didn't find an answer. anyone have an idea what's wrong?

Dan_335 · 07-21-2013, 03:11 AM

Standard issue with catless dp's

I'm not sure if he COBB has a code delete for it, if it doesn't grab the BMS dp fix as you alluded to

Problem solved!

enrita · 07-21-2013, 03:20 AM

Read the codes. U should not get post cat codes on stage 2, those are disabled.

07-21-2013, 01:48 AM	#1
styles50 Second Lieutenant 14 Rep 262 Posts Drives: 335is fbo/meth/Rb/Cobb Join Date: Sep 2010 Location: nyc iTrader: (3)	Help:Check engine light on with cobb stage 2+ Hey guys I'm having this issue that the yellow service engine soon light turns on after installing my catless dp. I running cobb stage 2 +st aggressive. Everything was working fine no light no codes but I went on vacation and the car wasn't used for 2 weeks. Today I turned it on and this light came on. However the car feels great no rough idle no rattle every runs smooth and I feel the power just this damn light is on im sure the o2sensors are installed right bc the car runs perfect but when I read the codes they say it's catalytic related. The car has 10k mls and I don't abuse it so it can't be any parts that needs to be replace. I clear the codes and it stays off the remaining time I'm driving but once I turn off the car and start it up again it comes on after 10min of driving My next solution is to buy bms dp fix and leave it on. I searched for hours even went into other car forums that are running cobb but didn't find an answer. anyone have an idea what's wrong? __________________
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07-21-2013, 03:11 AM	#2
Dan_335 Private First Class 7 Rep 172 Posts Drives: e92 335i Join Date: Jan 2013 Location: Sydney iTrader: (0)	Standard issue with catless dp's I'm not sure if he COBB has a code delete for it, if it doesn't grab the BMS dp fix as you alluded to Problem solved!
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07-21-2013, 03:20 AM	#3
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Read the codes. U should not get post cat codes on stage 2, those are disabled.
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