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Old 01-13-2013, 09:53 PM   #1
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Check Engine Light Problem

I installed a Steeda throttle body spacer a couple of months ago. Now about every 2 weeks give or take I get a P0171 code (System Too Lean Bank 1). Everything is tight and installed the way it is suppose to be. Anyone have any ideas? It is tuned by FSWerks I wonder if that makes a difference?


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Old 01-14-2013, 03:49 AM   #2
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Moved to "General Technical Chat". It could be a vacuum leak or your first o2 sensor has gone bad. You might want to see if removing the TB spacer will help.
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Old 01-14-2013, 03:52 AM   #3
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vacuum leak would be a very likely thing to check for.
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Old 01-14-2013, 08:23 AM   #4
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Have to agree with a Vac leak , take the spacer off it doesnt help and as you can see is more trouble then its worth

You list a xcal3 use it to datalog and see what the problem is , if you want to email me a datalog I dont charge to look them over and tell you what I see wrong

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Old 01-14-2013, 10:16 AM   #5
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We can take a look at it on Saturday if you want.
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Old 01-14-2013, 10:16 AM   #6
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There is no vacuum leak already check for that. I don't think the O2 is bad since this only happened once I put the spacer on. I think I will just take it off and see what happens.

I could datalog it but that is kind of pain to deal with.
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