Running Lean on Bank 1: Need some input

ampbmw · Mon, Mar-30-2009, 03:03:23 AM

So I suppose having my front header o2 sensor (f1) in my rear header, and having my rear header o2 sensor(r1) in my front header would cause bank 1 to run lean and bank 2 to run rich...correct?

Because my car is running lean in bank 1 and rich in bank 2.

Or does lean and rich have nothing to do with having these o2 sensors swapped? I think I might have accidentally swapped them when installing my headers.

**Tonester** · Mon, Mar-30-2009, 04:06:15 AM

Yes. 100% guaranteed that your O2 sensors are swapped.

ampbmw · Mon, Mar-30-2009, 05:57:17 AM

Quote:

Originally Posted by Tonester

Yes. 100% guaranteed that your O2 sensors are swapped.

just checked tonight, you were right....but did running about 30 miles on the swithced up setup cause any damage to the o2 sensors you think?

ampbmw · Mon, Mar-30-2009, 11:13:14 PM

anybody?

Mon, Mar-30-2009, 03:03:23 AM	#1
ampbmw Keepin' it dougie Join Date: Sep 2006 Posts: 1,125 Reputation: 0 Location: Atlanta	Running Lean on Bank 1: Need some input So I suppose having my front header o2 sensor (f1) in my rear header, and having my rear header o2 sensor(r1) in my front header would cause bank 1 to run lean and bank 2 to run rich...correct? Because my car is running lean in bank 1 and rich in bank 2. Or does lean and rich have nothing to do with having these o2 sensors swapped? I think I might have accidentally swapped them when installing my headers. __________________

Mon, Mar-30-2009, 11:13:14 PM	#4
ampbmw Keepin' it dougie Join Date: Sep 2006 Posts: 1,125 Reputation: 0 Location: Atlanta	anybody? __________________

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Mon, Mar-30-2009, 04:06:15 AM	#2
Tonester Banned Join Date: Jan 2007 Posts: 5,171 Reputation: 0 Location: Southern Cali	Yes. 100% guaranteed that your O2 sensors are swapped.