Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   Pelican Parts Forums > European Car Forums > MINI Discussion Forum

LinkBack Thread Tools Rate Thread
Thread Post New Thread    Reply
Registered User
Join Date: Feb 2019
Posts: 1
BMW Roundel Mini Cooper S 2007 O2 sensor

Mini cooper with 2ac2 code
o2 sensor before cat plausibility
Voltage 1.52 volts which is to high / Down stream voltage at .04 at idle
Acceleration upstream voltage is 2.4/ Down stream voltage is at .9
Already Replace the map sensor, maf sensor

Anybody have this problem
Old 02-08-2019, 06:48 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Luccia at Pelican Parts's Avatar
Join Date: Feb 2015
Posts: 3,183
2AC2: O2 sensor (bank, sensor 1) mixture too lean.

What symptoms are you experiencing? Does it hesitate when you accelerate? How many miles are on your R56? Any other lights on the dash? Did you replace the o2 sensor?

I have seen this code before with a bad cat, but there were a few other codes as well as an ECL light & loss of acceleration when stepping on the accelerator. Replaced that, along with both sensors and new spark plugs and all was resolved.
Old 02-18-2019, 01:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)

Thread Tools
Rate This Thread
Rate This Thread:


All times are GMT -8. The time now is 08:05 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.