Code po141 whats the deal on 2005 Acura RSX

05 acura 2.0 had car checked had 2 codes of po141.the parts house said its o2 heater sensor circuit malfunction bank 1 sensor2. replaced downstream o2 sensor. light came back on about an hour later.I installed stainless steel exhaust on car awhile back doesn't have converter, they told me when i bought it that it would work with no problems.Well there's some kind of problem. Any ideas out there to solve this problem? Or what this code means. Thanks

by in Bossier City, LA on April 29, 2010
1 answer 1 comment
ANSWER by on April 29, 2010
Make sure you have the correct power and ground to the rear O2 sensor heater circuit in your 2005 Acura RSX. Please see the RepairPal article for code po141 - http://repairpal.com/obd-ii-code-p0141.
COMMENT by on July 06, 2010
I had same code, replaced O2 sensor 1, back sensor was good. Ended up having to replace cat converter, luckily Acura did under warranty.