× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
post cat o2 sensors
Posted to Technical Discussion Forum on 2/16/2010 4 Replies

Hello tdf,

i've got this bmw with a dtc 233, cat efficiency bank 1. I put my scope on both banks post cat sensors ,and as you can see they are both at around 5v engine idling hot. now when i shoot some propane in the intake they both drop down to under 2v,I... Login to read more.

Files Referenced:

thumbnail

4 Replies Received (View Replies)

 

car Vehicle Data

1997 BMW 328is 2.8L

Engine2.8 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1997 BMW 328is 2.8L

Engine2.8 L
Trans4-speed Automatic (Electronic)