I've read that lv8 stands for load variable 8 bit, but that's not important right now . It is supposed to be a measure of how much air is in the cylinder, which is a measure of the load on the engine. It is used to index into the main timing table, and some other lesser stuff. Interestingly enough, you would think that after calculating lv8 and using it for timing the ecm would then use if for fueling, but noooo, it goes and repeats the same calculation in the fueling section before multiplying in some other terms to get to an injector pulse width. Must have been a committee project .
Wow, I was hoping to see something way out of whack that could be causing your outrageous LV8 value at idle, but nothing in those numbers above are out of the ordinary.
LV8 is a function of gm/sec, and rpm. Either the LV8 scaler got changed, or the prom, has been zapped with static electricity, and there's no checksum. Those are the only two things I can see doing that. Other then RFI, ie bad plug wires, or some other High Voltge spark, or heater fan motor brushes being worn, and again arcing.
thats a great thread ,
looks like you got your answer and then some back then
and to think i spent last night looking over the code trying to track down all the things it affects and is affected by ,
I should have known better to just used the search feature
I, never having been even close to being an engineer, only a lowly technician, have never been able to fathom the worth of the LV8 parameter. Obviously,there are a lot of discrepancies in the description of this parameter.I can't help you, sorry. Good luck!