idle question
07-08-2007, 11:42 PM
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idle question this is kind of an odd question. when i first start my car up, it sounds really choppy and lopey, from a cold or warm start either one. i love that sound. after i run it awhile, it starts to sound smoother ...still like cam but not as choppy. why does it do this? is there anything i can tune and tweak to make it keep sounding like that all the time?
07-09-2007, 05:50 AM
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Originally Posted by FL Junkie
this is kind of an odd question. when i first start my car up, it sounds really choppy and lopey, from a cold or warm start either one. i love that sound. after i run it awhile, it starts to sound smoother ...still like cam but not as choppy. why does it do this? is there anything i can tune and tweak to make it keep sounding like that all the time?
07-09-2007, 07:43 AM
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Exactly, initial timing is only in the low teens just after startup. You should be able to get that thing to idle just fine at 850rpm with about 23~24* of timing. Anything more and you'll get deceleration surging when DFCO isn't active.
07-26-2007, 05:38 PM
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heres my tune if you can look at it...also having other issues...
are you talking about spark advance under "in drive, in park"? which one do i change and how much should i lower the timing?
are you talking about spark advance under "in drive, in park"? which one do i change and how much should i lower the timing?
07-26-2007, 08:04 PM
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my car did kind of the same thing. just sounded like it lost its lope after a couple minutes. mine ended up being the timing overspeed underspeed correction. that **** was rythmically jumping from like 15 to 35 degrees trying to keep the idle perfectly at 900, so I cranked the over and underspeed correction way down and it helped out alot.
07-26-2007, 08:31 PM
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Originally Posted by Jasonscott
my car did kind of the same thing. just sounded like it lost its lope after a couple minutes. mine ended up being the timing overspeed underspeed correction. that **** was rythmically jumping from like 15 to 35 degrees trying to keep the idle perfectly at 900, so I cranked the over and underspeed correction way down and it helped out alot.
ok thanks. how far down?