Originally Posted by
Mark McKay
I have a 2006 roadster. Engine light came on and I had the dealer diagnose the problem. Codes read bank 2 sensor 1 slow to read and bank 1 sensor two slow to read. For what they wanted to replace I left and ordered all four new Bosch sensors and replaced them. I hadn't driven 30 miles and the check engine light came back on. Sure enough, the same messages came up when I had someone else hook up their ODBC. I'm at a loss as I can't believe all the new sensors were bad. Has anyone had this happen or have any suggestions? Thanks in advance for any help.
Get your own OBDII reader. then reset the codes, you may need to do this two or more times until the computer learns that they have been changed and makes adjustments. Checking connections won't hurt either. Did you do anywork on or around the exhaust, bits of carbon etc. can be knocked loose and clog the sensors, a little cleaning may renew their efficiency.