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Engine Specific Tech
96-04 - 4V Specific
Random misfire
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<blockquote data-quote="NXcoupe" data-source="post: 1511450" data-attributes="member: 11751"><p>If you got E70, you would be running very rich on your E85 tune which would present itself more under wot than other places. Also, you need to tighten plug gap when on E85, which under wot can cause misfires from spark blowout. I run my E85 plug gaps around .045 and 93 at .052 to .056, this on 5.0 pushrod engines. The cobra engines are much more prone to spark blowout due to valve and plug orientation and combustion chamber design.</p><p>Jmho.</p></blockquote><p></p>
[QUOTE="NXcoupe, post: 1511450, member: 11751"] If you got E70, you would be running very rich on your E85 tune which would present itself more under wot than other places. Also, you need to tighten plug gap when on E85, which under wot can cause misfires from spark blowout. I run my E85 plug gaps around .045 and 93 at .052 to .056, this on 5.0 pushrod engines. The cobra engines are much more prone to spark blowout due to valve and plug orientation and combustion chamber design. Jmho. [/QUOTE]
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