I have a 2015 mustang gt, and am very happy with the progression of the tune so far. I am however experiencing a problem. When I launch, and run it all the way thru 2nd gear my lambda is .82, which is where I want it. As soon as it shifts into 3rd the lambda drops to .75, hitting .72 before it shifts into 4th Any ideas would be helpful.
Thanks
If you post your tune and a log. We should be able to help you out with that.Quote:
Originally Posted by stodd347
Its the CAT over temp protection. You need to turn off all 3 toggle overtemp protections to run target lambda in all gears.
Make sure the following are being logged:
Spark Source
Fuel Srouce
VCT source
Like it's been stated it looks like you are exceeding the temps set in the Cat Overtemp protection cell. This can be found under in the Fuel tab under COT. There will be number set in temperature. If you are catless disable them.
I'm running maganflow hi flow cats so I raised mine to 1800* so it only kicks on the last half of a second consecutive pull. I also raised the max enrichment to .80. So even when it does kick on, it will only drop me down to .80.
Quote:
Originally Posted by Jn2
Thanks for your help, this was the solution to the problem
In case I didn't mention this, you will melt your cats if you disable this and still have cats. If you are cat less than don't worry about it, keep them disabled;