Quote:
Originally Posted by Monooxide
Every S13 I have worked on and removed those solenoids in the back have had giant dry rot holes in the vacuum lines on those solenoids.
You can also try pulling timing out as NOx emissions will go down with less timing. Also, a richer mixture will bring down NOx levels, but CO and HC levels will rise. High NOx levels mean your probably lean.
I just read all of this in my Electromotive standalone manual. We don't have emissions luckily.
Good luck.
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anyone have pictures or a walkthrough on how to replace those solenoids and/or pulling the timing out? i'm pretty sure i'm already running rich, it smells that way at least lol... not sure if running lean smells the same, since i'm a semi noob with cars, but im pretty sure it doesn't and my friend said it smelt rich as well