went super lean on the way home (help) - Performance Forum

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went super lean on the way home (help)
Saturday, June 17, 2006 11:04 AM
my car is running MS right now but Im still NA. I was working on my idel the other night and I guess I acidently screwed up my AFR tables so the car pulls towards 19:1 as much as possaiable in open loop.




but none of that matters what matters is how baed is it for a car to boucne to 19:1 for like a second and then back to safe. it did it alot, I drove down to jesry scared as hell watching my wideband trying to keep the bar green (yeah almost died like 3 times)

and please no guesstimates. I need awnsers from people that no what there talking about. thanks guys


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Re: went super lean on the way home (help)
Saturday, June 17, 2006 9:40 PM
Jcavi wrote:my car is running MS right now but Im still NA. I was working on my idel the other night and I guess I acidently screwed up my AFR tables so the car pulls towards 19:1 as much as possaiable in open loop.




but none of that matters what matters is how baed is it for a car to boucne to 19:1 for like a second and then back to safe. it did it alot, I drove down to jesry scared as hell watching my wideband trying to keep the bar green (yeah almost died like 3 times)

and please no guesstimates. I need awnsers from people that no what there talking about. thanks guys


if you wernt driving like a retard, no damage will be done. not exactly good for the engine, but it wont hurt it.


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Re: went super lean on the way home (help)
Sunday, June 18, 2006 9:31 PM
if it had done lasting damage you'd probably know about it by now... 19:1 is actually so lean that your egt's should be lower than they are at stoich, so at very least you're not melting parts... its so close to the lean-run limit i'm surprised it stayed running at all... but i doubt that you did anything major... just get it fixed!




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Re: went super lean on the way home (help)
Sunday, June 18, 2006 9:39 PM
And its not abnormal to hit 19:1 or so during decelleration...





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Re: went super lean on the way home (help)
Monday, June 19, 2006 3:43 PM
Yeah I belive Im ok. I am fixed the problem so all is well I just hope no lasting damge was done.


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