Autozone checked it for me and sure enough, 1400 - the DPFE sensor. The guy could not believe that I knew what it was.
I found the sensor on www.wholesaleparts4u.com for $22.55. They have it listed as an EGR system pressure sensor.
Tom
My '02 ST's check engine light just came on. I have read posts on here about the DPFE and the cracked elbow and I will check/change the elbow first and then if the problem persists, I will look at the sensor.(after getting the codes read) I know how to jump the ODB port on a chevy to get the...