bluejay i realize your probably not the one i should be asking lol but does that 4-6 week including converting it over to a gryphon or is that for custom tuning? I cant imagine it taking 4-6 to convert it over.

 

When they get to it, keep in mind you are in a line, it takes about 15 minutes to convert it over. It's the tunes that take awhile.

 

yes i saw on the website they can have it back in 2-3 weeks with custom tunes but i am aware of the family suff they had going on so I imagine it will be a little longer, i emailed corey about just getting the edge switch and sending it back and send the tunes when there done

 

When you ONLY get the codes "too lean bank 1 and 2", you are actually not running lean at all. If you were, then you would get "lack of switching". So the computer is actually compensating for it.

 

If you do the upgrade and can be patient the custom tunes will come back already loaded on the unit.

 

i completely understand, and if its like 2 weeks for the upgrade and 4 weeks for the tunes ill probably just wait. But if its like a week for the upgrade and a month or so for the tunes ill get it sent back to me with just the canned tunes. Now i need to figure out whcih custom tune(s) i want. Trying to figure out how much gain you get from higher octane fuel and if its worth it

 

sorry you are wrong here. P0171 and P0174 are lean codes. There is parameters in tuning that the engine is allowed to operate in, and the PCM knows those as "normal"

Im gonna make this a simple example so just look at the big picture.

Engine is allowed to use -5 through +5 fuel. In a perfect world the engine would always be at 0 at all times. Most engines will run around -1 or +1. When you develop an unmetered air leak (between the MAF and 02s) the computer sees the excess air in the exhaust, and starts to add fuel to compensate for the extra air. The engine steps up to +2 fuel, then +3, still can't get it back to 14.7:1 so it steps up to +4 fuel, then +5. At the point the engine needs to go to +6 fuel it throws a lean code because the PCM can't compensate for the excessive air.

Same thing goes for P0172/P0175 and Rich codes, just works the other way.


OP: Assuming there is no mechanical issues with your truck, custom tuning will be your solution. Custom tuning will allow changes in what the PCM knows as normal.

So in that same example engine, your normal parameters (based on your mods) could be normal operating at +3 fuel, with a range of -2 to +8. This way you can add more fuel then stock without setting a CEL.

 

fyi when u go to shop- truck is on dyno , tunes made THAT DAY, end of story, be more accurate with info jim

 

Why? You already have an Edge. It will be cheaper to just upgrade it to a Gryphon.

 

Pat - look up "tranport delay" . In this particular case, the PCM is getting erroneous DATA from the O2's in their current location due to the headers.

 

yah i understand that location of 02s has a factor on how the engine performs, but that is encompassed under my statement of "no mechanical issues with your truck"

 

Of course, everyone knows that. Nothing was said, that I recall, about going there, only that they were in the next state. I would assume that applies to any of the tuners.

 

Are you running a CAI or have you modified the intake tract in some way or relocated the MAF sensor? If your MAF is properly calibrated, adding headers shouldn't be causing a lean condition on an otherwise stock engine. Put the stock air box on and see if it's still giving lean codes.