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Hi all ,

In the beginning I had my old sensor which was at 38k and started my car and check engine is on with air /fuel ratiowas low at 9 and boost very low . Then it would idle weird. Give it 10 min everything will rise and sound a lot better . I delete the check engine light snd let it sit there for awhile and everything good . Iturn off and then I start it up after 2 hours and check engine light is off still . I replaced the old sensor with new one(denso) and still get code with no activity . Is this a tune issue that can resolved since I need one due to installing new walbro pump 450 , ID 1300 Cc fuel rail with flex fuel kit . Which by the way my tune is tomorrow . Any insight please is very helpful
 

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Did you install your injectors without scaling them? That’s going to definitely give you problems for sure.
 
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