Simple easy exhaust question

Seann14217 · 08-09-2019, 10:41 AM

Will deleting your secondary cats mess with the o2 sensors and cause a check engine light to come on?

CTinline-six · 08-09-2019, 10:42 AM

No, the sensors are monitoring the primary cat converters.

Seann14217 · 08-09-2019, 10:52 AM

Quote:

Originally Posted by CTinline-six

No, the sensors are monitoring the primary cat converters.

I thought so, thank you so much

08-09-2019, 10:41 AM	#1
Seann14217 Private 3 Rep 67 Posts Drives: Bmw e90 Join Date: May 2019 Location: Usa iTrader: (0)	Simple easy exhaust question Will deleting your secondary cats mess with the o2 sensors and cause a check engine light to come on?
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08-09-2019, 10:42 AM	#2
CTinline-six Hoonigan 6825 Rep 3,000 Posts Drives: '09 328i, '98 Wrangler Join Date: Dec 2016 Location: Connecticut iTrader: (0) Garage List 2009 BMW 328i N51 [0.00]	No, the sensors are monitoring the primary cat converters. __________________ "Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should." -Dr. Ian Malcolm, Jurassic Park
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