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SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
smoke from exhaust on dyno
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<blockquote data-quote="95_XB331" data-source="post: 8505981" data-attributes="member: 13698"><p>If you're dipping around and below 11.5 A/F you will see some smoke, usually gray if you have cats, black if not. Also, sometimes the AFPR (common) or electric pump (rare) could be weak/leaking on one run and then holding pressure on the next.</p><p></p><p>If there's belt slip or a bypass problem, the computer will adjust the A/F, and you'll see a flat-line in the <strong>MAF voltage</strong> or via the boost gauge of course and it should not get rich, but lean.</p><p></p><p>You should try a 0.032-34 gap... the more until you get blowout, the better.</p><p></p><p>As for white smoke, make sure you're not getting blow-by and shooting oil out of dipstick, VCXs, etc... and leaking on the pipes...</p></blockquote><p></p>
[QUOTE="95_XB331, post: 8505981, member: 13698"] If you're dipping around and below 11.5 A/F you will see some smoke, usually gray if you have cats, black if not. Also, sometimes the AFPR (common) or electric pump (rare) could be weak/leaking on one run and then holding pressure on the next. If there's belt slip or a bypass problem, the computer will adjust the A/F, and you'll see a flat-line in the [b]MAF voltage[/b] or via the boost gauge of course and it should not get rich, but lean. You should try a 0.032-34 gap... the more until you get blowout, the better. As for white smoke, make sure you're not getting blow-by and shooting oil out of dipstick, VCXs, etc... and leaking on the pipes... [/QUOTE]
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smoke from exhaust on dyno
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