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Sure enough, mine is totally missing.pic's of the AC with flapper, COLD
Even by usual northwest standards the last month has been crappy.Good advise! At 71, I’ve come to the same point. We live in Maple Valley and have had several trees come down on our propert. Winter life in the PNW is never dull.
I own a 92 K2500 454, am having the same stumbling on cold start and trying to figure it out - hence, following this thread.
You’re welcome for a cup coffee anytime!
Rich
Perfect. That's the way the system is intended to work. (As long as it's switching back-and-forth FAST ENOUGH.) Many scan tools offer a feature called "O2 crosscounts" or similar; it's counting the number of rich-lean flip-flops in a given period of time, because the sensor should switch faster than the update speed of the scan tool.only thing that looked strange to me was o2 sensor reporting rich, then lean continually.
An old friend of mine coined that term.Thanks for that.
Instant mental image: Professor Snape, as Defense Against the Dark Arts Instructor, giving lessons in proper use of the Torque Wrench Wand, for warding off evil gasket failures.
I’m a newbie on this so assume some may be wrong or not the most efficient but it’s what Id do in your case.good to know, thx.
what parameter(s) do you think i should focus on? Thx.
It’s interesting to see that your trim cell at idle is No 18. I’m showing a lean condition and code 44. I’m showing an 18 too which I thought might be a problem as the factory service manual showed it to be zero as normal? Maybe that’s an error in the manual since we are both 18. 1995 K1500 350 engine here. This forum is helpfulhere's readings from scanner, Frame 0 there are 11 frames.
i suspect issue occurs when going from OPEN to CLOSE loop.
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