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That was along time ago code. I do not remember what it was. I changed the regulator and it has been good since. Changed the knock sensors and wiring today. Still does the same thing however it did run longer. About 20 minutes longer before it started to stumble. Now it has an 02 code bank two sensor two. It is reading zero when driving. The other three read close to each other. It also says it's running lean now.FPR = fuel pressure regulator
Yeah I changed them out today. New ones read 99 on the ohm sideI ran across both figures. But over 110 k is definitely out of spec. Most of the new genuine GM knock sensors I've installed are right at 99k to 100.7 k