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Full Lean AFR @ idle after PTE 780 install

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Old Nov 4, 2016 | 02:55 PM
  #16  
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Some people say 16 min of idle some people say 24 min.

I do 24 while watching temp guage.

Don't rev it when trying to get trims. Let it idle after 16 min of idle and you are seeing +5 percent fuel trim.

Adjust latency at 14 volt and 12 volt raise them by 5%
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Old Nov 4, 2016 | 02:55 PM
  #17  
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From: Santa Ana
Scaling more is leaner less is richer
Latency more is richer less is leaner
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Old Nov 4, 2016 | 04:26 PM
  #18  
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Bingo 4b11slayer, and thank you for the help thus far. I will get back to you with some values bro.
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Old Nov 4, 2016 | 05:55 PM
  #19  
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okay so STFT was still +5.1994.....

I flashed it with the 5% corrections and it was still idling all crazy. Decided to take it around the block like literally around my neighborhood and that didn't go so great at first. It was shaky and weird. Then all of a sudden the LTFTs registered in evoscan and I joke you not the AFR stabilized to approximately 14.7 and the shaking and street beating lobe vanished. I did like the way it sounded when it was idling all rough but oh well.

Low LTFT 4.3
Mid LTFT 0.5
High LTFT 0
In Use LTFT 4.3

I have no idea what just happened. I'm guessing that when you reflash with new scalings the computer doesn't trust you till it can sample itself?

I have just parked the car and will go back out for a cold start and drive in a bit.

Honestly, I still can't believe that happened. I thought that some debris was just freed from an injector nozzle or something till i noticed that the LTFTs had popped in.
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Old Nov 4, 2016 | 08:45 PM
  #20  
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Looks like cold starts are a little bit harsh, nothing that is unreasonable but I will have to do a bit of tuning to get that more under control. Took her out for an extended drive and covered a good amount of miles. AFR is looking like my map and trims are +4.
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Old Nov 4, 2016 | 11:23 PM
  #21  
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Glad to help, you can try and add more fuel to get as close to 0 as possible. I have noticed sometimes after a flash ill start my car and ittl be full lean on my wideband and ****ty idle. I either rev rpm some or drive it about 1 block and get into spool and then it relearns it self.
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Old Nov 5, 2016 | 07:11 AM
  #22  
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Nice. Thank you man. You have been a great help.
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