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fmu installed - now running rich

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silvreclips

silvreclips

15+ Year Contributor
1,279
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Jul 19, 2005
Greenville, South Carolina
I went ahead and installed my Vortech FMU because my turbo should be going on in a month or two, but the next day I get a CEL and I went and got the code pulled. I got PO172 - System to rich. Now from what I understand the fmu shouldn't be adding any more fuel untill boost, so is there something wrong with mine?
 
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