Lt1 MAF Tuning help?
06-20-2015, 12:07 PM
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Lt1 MAF Tuning help? Hi everyone
I'm lost!
Based on recent logs, I have made some smallish changes to my MAF table. Mostly higher up, so I really was surprised to find that the car wont even idle after the changes. I even flashed a second time to make sure.
I've gone back to my previous tune and everything seems fine. The only changes made were as shown below. Am I really out to lunch thinking small changes like this would prevent the car from running?
Any ideas or information would be appreciated!
Thanks in advance
I'm lost!
Based on recent logs, I have made some smallish changes to my MAF table. Mostly higher up, so I really was surprised to find that the car wont even idle after the changes. I even flashed a second time to make sure.
I've gone back to my previous tune and everything seems fine. The only changes made were as shown below. Am I really out to lunch thinking small changes like this would prevent the car from running?
Any ideas or information would be appreciated!
Thanks in advance
Last edited by sk8rh8r; 06-20-2015 at 12:16 PM. Reason: Put tables into excel for easier viewing
06-23-2015, 05:12 PM
#2
You are adding way too much fuel. To give you an example at 4048Hz you are adding 47% more fuel. If you have a datalog that you can attach I can take a look at it and provide you the MAF recurve. For example if you want to add say 2% more fuel at a certain Hz then you would multiply the Original value by 1.02.
If you want 10% more fuel at a certain Hz then you would multiply the original value by 1.10. Start off with small multiples such as 1.02, 1.05, 1.07 ...
If you want 10% more fuel at a certain Hz then you would multiply the original value by 1.10. Start off with small multiples such as 1.02, 1.05, 1.07 ...
06-28-2015, 02:36 PM
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Hey FrankieD
Thanks for the reply. Much appreciated.
I really thought I was doing as you have suggested, but haven't looked closely at the spreadsheet I created to do the calculations since last year. It sounds like I may have messed up the formula.
I won't have the car out until next weekend (the laptop is in the cR), but will have a look at that time. Will report back.
Thanks for the reply. Much appreciated.
I really thought I was doing as you have suggested, but haven't looked closely at the spreadsheet I created to do the calculations since last year. It sounds like I may have messed up the formula.
I won't have the car out until next weekend (the laptop is in the cR), but will have a look at that time. Will report back.