I had a sudden loss of power today on the way home and then the SES light came on. After getting the car home and in the garage I jumped the diagnostic connector and came up with codes 32 and 43. According to the Haynes manual code 32 is the Baro Sensor located on the firewall. I called Autozone to see if they have one and they do not carry it. Is this a dealer item only? Or would NAPA or Pepboys carry this? The code 43 has me really puzzled. According to the Haynes manual it is related only to the ESC (on L69 engines only). My car has the LO3 TBI motor in it. Is there anyone out there that can possibly shed some light on this for me?

 

I think you are looking at the codes for the wrong engine in your book...in my book (chiltons), code 32 is for the EGR valve, and code 43 is for electronic spark control circuit (ESC)...