Just installed HKS plugs gapped to .024", running 91 octane. Map 1 an Map 2 run looks ok (highest pull of 2.3 in cylinder 1,4 and 6). But noticed that running map 0, while normal driving is showing big deviations in all cylinder. Some 5.8 up to 9, seemingly random. Did I just mess up the install? or is it normal when not WOT?
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