98 Suburban Starts Then Dies

[taxidermist]

O2 sensor,,,, thiese things go bad and sometimes dont showup on the code. I had one do the samething as yours. Never could find a code. So I was talking with the guys at Autozone and one of them ask about the egr valve, so I bought one and then the O2 sensors. Had one in front of the cat. and one behind it. Replaced both and it ran like a new one. I traded it when it hit 275,000 miles.

Electronics suck, OBD II sometimes dont store codes for some odd reason.