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Originally Posted by 7sins
(Post 12425013)
yea that looks a lot better I am not seeing the severe lean spikes and the engine stays running. so now what I would do is re-introduce engine overrun and turn up the "disable fuel cut above" and "go into fuel cut below" settings until you get a nice idle recovery. also you can reintroduce the lean out margin but use '100' in your vacuum areas as you don't want lean out margin to be able to go into protect while in vacuum ranges. as far as the dipping goes I do see a bit of a lean condition but it looks like it is happening after the idle recovers. I would try increasing your ignition trim advance, start with 10 at -50 rpm and interpolate up to 15 at -200 and see if that helps. you are already not running much advance in the idle area so this may help. my half bridge recovers nicely with those settings but it may be too much for a street port or stock ports.
try adjusting the idle trim first and see if that helps solve the dipping, if it starts hunting it is too much. after that try reintroducing overrun and lean out margin. |
Don't mean to hijack this thread, but it happens to me, too.
However, mine is a bit weirder: At cold start, car idles at the normal high idle (1300rpm) for the first 10 seconds or so. Then it lowers down to normal idle, around 1000rpm. Fine. But soon after that, the idle starts to bounce/search up and down, swaying between 750 and 1300, which it does until the car is completely warm (around 80+ deg. celcius). Even when warm, it has a very minor searching (going between 900-950rpm or so). During the warm up, the searching gets less and less serious. When searching, the idle sometimes dips so low that the engine dies out. This even happens occasionally while driving, upon clutch out/no throttle. I'm on an Adaptronic plug-n-play, tuned by my local shop. Engine/turbo are all stock except: 80mm turbo-back exhaust Air pump delete/block cone filters I've tried playing around with the Adaptronic idle tuning, but haven't found something that works. I'm not familiar with the software, nor with tuning, (except the basic theories), so I don't want to mess around too much. Any thoughts?? Thanks in advance!! |
Originally Posted by adey
(Post 12425637)
Don't mean to hijack this thread, but it happens to me, too.
However, mine is a bit weirder: At cold start, car idles at the normal high idle (1300rpm) for the first 10 seconds or so. Then it lowers down to normal idle, around 1000rpm. Fine. But soon after that, the idle starts to bounce/search up and down, swaying between 750 and 1300, which it does until the car is completely warm (around 80+ deg. celcius). Even when warm, it has a very minor searching (going between 900-950rpm or so). During the warm up, the searching gets less and less serious. When searching, the idle sometimes dips so low that the engine dies out. This even happens occasionally while driving, upon clutch out/no throttle. I'm on an Adaptronic plug-n-play, tuned by my local shop. Engine/turbo are all stock except: 80mm turbo-back exhaust Air pump delete/block cone filters I've tried playing around with the Adaptronic idle tuning, but haven't found something that works. I'm not familiar with the software, nor with tuning, (except the basic theories), so I don't want to mess around too much. Any thoughts?? Thanks in advance!! |
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