2007 Silverado Classic 1500, 5.3L engine, 233k miles.
Got p0307 last week, cleared the code and it hasn’t come back. I’ve checked for pending codes, still nothing. Went to check the $06 for misfires and I can’t get it to come up on my Foxwell scanner.
Question, it the engine supposed to be running for this test or will it show the last 3200 revs before shutdown? And is the $06 even available for GM vehicles?
Truck runs fine BTW. The CEL came on while waiting for gas at Costco.