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That would make me richer than the wideband says then. So that wouldn't be a terrible thing. But it's tight
It would be if you were to rich already. Which you are. The only reason to shoot for 10 afrs would be on the first drive to see where you are at and make sure it's not lean. Got any plug pictures?
It would be if you were to rich already. Which you are. The only reason to shoot for 10 afrs would be on the first drive to see where you are at and make sure it's not lean. Got any plug pictures?
That was my point. If he is in the 10s already and the sensor reads lean, then it could be PIG rich, ie rich enough to do damage. he said its tight though, so all I can do is take his word on that one.
I don't have or use HPTuners, so didn't pay much attention before and missed this little detail.
The file name is a little telling. If it's that rich and knocking, there's typically too much ignition advance.
Dougs post above is good advice. I might even pull more and slowly sneak up on 12ish in that 4k area, smoothly ramping it to about 14º at 6k, while also sneaking the fueling into the low to mid 11's. Little by little.
This assumes the commanded timing is the actual timing. If it hasn't been verified and any offset accounted for, these numbers could be problematic too... if 12º commanded is actually 18º, or whatever.
Your torching those pistons. Check your fuel setup. Running 1 wideband just means its an average of all the cylinders so there could be cylinders that arent being fuelled as much as the others.
Do a pull and yank all the plugs and compare them. If they look different, then you have issues.
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