Basically have tried adding air with table B4343, but I can't seem to get my cammed lq9 to start and stay running without giving it gas on cold starts.
It only starts without pedal effort when it is up to operating condition.
I am posting a log of a cold start attempt without touching the gas I did this morning. It starts but dies a second later. Then have the full warm up logged in Drive. Also attached tune file
Attachment 16032
Attachment 16033
Any help?
No help?
Read this thread and follow the instructions, should get you pretty close.
http://forum.efilive.com/showthread....ips-amp-Tricks
Already have all that taken care of.Quote:
Originally Posted by ScarabEpic22
It idles fine, I am trying to get cold start idle to occur without giving gas. Right now I have to give a little gas for a few seconds before letting off and idling fine.
Trying to get to where I just start the truck and it goes straight to idling fine.
Look at B4343 and B4304 and the other parameters associated with that group of parameters.
Add air to start up friction in the areas it's having trouble
I have already messed with b4343
The values below are what are in the tune file I have attached to my first post.
Do I just keep adding air until the problem goes away? Because its already higher than any idle tutorial I have seen so far.
My current Startup Friction Air flow correction
-40 F 15.500000
15.000000
14.500000
14.000000
13.500000
13.000000
12.500000
12.000000
11.500000
11.000000
9.500000
9.000000
8.500000
8.000000
8.000000
284 F 8.000000
Anyone have any suggestions after looking at my tune file and the log on what to do?
I'm still looking and thinking...
Cam specs?? Idles at 54-56 kpa Probably not real big I hope. Why are you setting the idle only 725 rpm? Comanded afr does not equal actual afr. How did you tune the ve and maf tables?