So i have driven close to 500 miles on my HFCS but the CEL is still on. I also got the person who installed them to clear the code and it worked for about 50 miles but the light came back on.
The installation is fine because i got multiple people to look at them. so i dunno what the deal is.
Will a tune take care of the CEL or is it 50/50 on that too?
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