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Title: Really bad oscillating idle Post by: wannabee900 on September 22, 2015, 02:01:11 PM Can someone have a look? please!
Title: Re: Really bad oscillating idle Post by: adam- on September 23, 2015, 05:24:34 AM IRL/IOP relationship?
Title: Re: Really bad oscillating idle Post by: SB_GLI on September 23, 2015, 06:58:39 AM I've accidentally screwed up (unknowingly modified) a couple cells in the upper left hand corner of IOP (low load, low rpm) before and it caused some wacky idle issues.
Title: Re: Really bad oscillating idle Post by: wannabee900 on September 23, 2015, 07:10:37 AM IRL/IOP relationship? Don't think so from what I can see in the logImage showing oscillating Title: Re: Really bad oscillating idle Post by: SB_GLI on September 23, 2015, 11:10:34 AM Don't think so from what I can see in the log Image showing oscillating Mine was nothing like that. It was like a 150 rpm fluctuation max. Yours is pretty crazy, up past 2,500rpm! Title: Re: Really bad oscillating idle Post by: wannabee900 on September 24, 2015, 12:08:54 AM Slightly more advanced ignition in idle territory might have helped a little bit. The car has lowered compression.
It would still be nice if I got some more hints from the log. Thank you Title: Re: Really bad oscillating idle Post by: aef on September 24, 2015, 01:19:46 AM Which ecu? What has been done on the hardware side?
Title: Re: Really bad oscillating idle Post by: wannabee900 on September 24, 2015, 03:54:41 AM Which ecu? What has been done on the hardware side? 7.1 . Bigger turbo, lowered compression, injectorsTitle: Re: Really bad oscillating idle Post by: adam- on September 24, 2015, 03:58:47 AM Turbo won't affect idle. How low, and what injectors, what is your scaling?
Title: Re: Really bad oscillating idle Post by: wannabee900 on September 24, 2015, 08:01:02 AM Turbo won't affect idle. How low, and what injectors, what is your scaling? Lower than most :-) and the horrible (@idle for some people) 630cc :P (but to me it does not look like tvub/temin problem) . Scaling could be off but still, why does this situation not occur every day? I've yet to find something like tmot or tans that would put me in a bad place in a table. It just happens sometimes. And shouldn't be to hard to see in log if scaling was the problem?While I now after this log have advanced ignition I also lowered KFMRES since the ignition changes to smoothen idle are quite big as can be seen in log with ecuxplot. Where do I adjust PID settings for idle? In OP attached log I've tried to get as many idle relevant bits and values logged as I possibly could. Title: Re: Really bad oscillating idle Post by: dream3R on December 06, 2015, 09:06:17 PM dekas? increase torque reserve and raise idle
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