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Title: Issues with Lambda regualtion / Lambda Control Post by: RavenT on April 05, 2021, 05:59:37 AM Hey guys,
I have an issue with the Lambda regulation. I did a log everything fine, lambda control works, all was fine. I turned around, did a new log (no restart, no new file flashed etc.) and lamnda did not regulate anymore. Lambda target is ok, lambda current way too lean and lambda control at 1 so no regulation. But i can´t understand why. It is a S3 8L with APY engine, AGU Head, ME7.5 1mb ECU swap, wideband LSU etc. I deactivated AGT because we did not install one. Kluster fuse is pulled for logging. Perhaps any one know something. Also i saw the cable from LSU was tied to the turbo waterline near the turbo core. But i don´t think the temperature cause this (all wires are good nothing melted) i attached the 2 logs (1 picture of each log for a quick look and 1 log while working lambda 1 with lambda not working) both in 3rd gear from 2000rpm to limiter thank you in advance Title: Re: Issues with Lambda regualtion / Lambda Control Post by: aef on April 06, 2021, 01:25:35 AM any dtc present?
Title: Re: Issues with Lambda regualtion / Lambda Control Post by: RavenT on April 06, 2021, 09:36:23 AM Can communication with Cluster because of the fuse.
Nothing special. The dtc was allready as the lambda worked finde. S Actual i think it is no Software problem. I really think its because of the lambda wires got hot from the Water line they were tied to. I will test the next days. The Problem appiered about 30 mins after starting and some logging so I think its getting hotter and the wires got more eletrical resistance. Idk but I cant See any thing what is blocking lambda Regulation. Title: Re: Issues with Lambda regualtion / Lambda Control Post by: ottosan on May 10, 2021, 04:45:35 AM Can communication with Cluster because of the fuse. Nothing special. The dtc was allready as the lambda worked finde. S Actual i think it is no Software problem. I really think its because of the lambda wires got hot from the Water line they were tied to. I will test the next days. The Problem appiered about 30 mins after starting and some logging so I think its getting hotter and the wires got more eletrical resistance. Idk but I cant See any thing what is blocking lambda Regulation. Did you solved the Regulation problem? I have this issue as well. Sometimes under WOT it goes off and back on again. |