PontiacBonnevilleClub.com

The forum for Pontiac Bonneville enthusiasts
http://www.pontiacbonnevilleclub.com/forum/

99' BONNEVILLE O2 sensor locations?

http://www.pontiacbonnevilleclub.com/forum/viewtopic.php?t=53824

Page 1 of 1

99' BONNEVILLE O2 sensor locations?

Posted: Fri Mar 21, 2025 7:39 am
by wpbrink
99' BONNEVILLE. Where are the O2 sensors located on my 3800 engine?

Re: 99' BONNEVILLE O2 sensor locations?

Posted: Fri Mar 21, 2025 8:59 am
by harofreak00
Upstream is on the top of the rear exhaust manifold, downstream is mounted directly behind the catalytic converter.
All times are UTC-04:00
Page 1 of 1

Powered by phpBB® Forum Software © phpBB Limited