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Viggen misfiring at WOT
Posted by ryaneirich [Email] (more from ryaneirich) on Sun, 8 Sep 2019 13:59:05
My Viggen is developing an intermittent, extremely noticeable misfire at WOT. It clears up somewhere before 4,000 rpm, probably sooner though, and then it's fine up to redline. I have no CEL's and my wideband A/F gauge shows a normal A/F ratio (with my JZW stage 4 tune, the acceleration enrichment dips to around 10.8:1 and then comes back up into the high 11's/low 12's). Also, this is not TCS intervention, it's definitely something else.
Any thoughts on what could be causing this?
posted by 50.46.223...
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