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2005.11.25 When ever the engine has been turned on it has problems, it sounds like it mis-fire and it "jumps" when traying to accelerate just a little (high "ve"). It does not matter if the car is warm or cold, or if it has been turned off for 1 minute or 1 hour, but the problem seems to fade away the last 10 sek. before the Lambda-reading appears om the display/MT? *If the mixture is very rich, and it cannot ignite, O2 gets to the exhaust. Because of this, the WBO2 thinks it is lean, and ego-correction adds more fuel which does not help the issue. * I believe it is the mixture that is wrong and causes the problem. ** Primarily '''look at the ego-correction''' (which is direct information! egoC:-20 means -8% because 0.4% units), not the lambda. Only look at the lambda if you want to verify ego-correction (direction of change). Mounting NBO2 sounds like a waste of time. ** "pre-heat" the WBo2 with mde02 command so you can get readings right when the engine start ***Okay thanks I'll try the mde02 command, cause the problem is only there before the wbo2 i warm, when I have no o2-readings. I think I got the ego-correction under controle, and I can't see how it can bee a part of this problem. *Make the EGO range very narrow, like *-ego_rich_limit=1% *-ego_lean_limit=5% * read TuningSession/VEtuning for more on the subject. ** My EGO is not activeted before CLT > 70c and it is there no matter what CLT-temperature. Is there some start-up enrichment that last so long (until lambda-reading appears or just before)? * the afterstart enrichment decays to 0% from original (say +25%) in a configured number of cam-cycles (usually 255). While this is theoretically independent from the WBO2 warmup, it happens in the same appr. 25..30sec timeframe. Next step is to start documenting your setup. * don't forget about injectors (type, flowrate) * flyback setup * firmware and config * organize thematically (not chronologically), index on MembersPage/HansK This will make it possible for other to help you investigate the problem. -------------- http://www.vems.hu/files/HansK/Config_24-2.txt --------------- MembersPage/HansK
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